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Before Westerners arrived, the Miwok enjoyed thousands of peaceful years of pristine beauty on Angel Island.  Native American use of the island began when people first came to live in the San Francisco Bay Area. The Coast Miwok Indians, who lived in what is now Marin County, reached the island with boats made from tule reeds. Some of these boats could carry eight to ten people. Though they tended to become waterlogged after prolonged use, these boats were adequate for short trips because their lightness made them fast and maneuverable. Long poles were used to propel the boats in shallow water; double ended paddles were used in deep water.

Miwok Indians established camps at what we know today as Ayala Cove, Camp Reynolds, Fort McDowell, and the Immigration Station. The Indians using the island were experts at fishing. They also hunted deer, seals, sea lions, and sea otter. Several kinds of fish and shellfish were available year-round, and salmon and other highly prized fish were seasonally plentiful. The annual spawning runs were made though Raccoon Strait, just offshore from Angel Island. The Indians also hunted duck and other sea fowl, and gathered acorns, buckeyes, and other seed crops, as well as certain roots and leaves, in order to round out their varied diet.

Beliefs

The Miwok had an animistic philosophy:  they wanted no walls and trod lightly on the land, leaving no footsteps, always apologizing to the spirits in animals or nature whenever they disturbed them in whatever fashion.  Their oral history was transmitted through the stories of the elders and shamans.  Tribal boundaries were taught to children by rote.

Social Organization

Miwok tribelets preferred to live in villages of about one hundred persons.  They kept their villages small in order to enjoy living at the peak of the environment around them without the need to destroy. There was a male elder in each village with a woman who was responsible for organizing the ceremonies.  The Shamans provided both negative and positive rituals.  They used local plants to create trances.  It was accepted that the Shaman had the power to cure, kill, predict the future, and start the rains.

Living Conditions

Only temporary houses were built on Angel Island: they did not live there permanently.  Houses were made of branches covered with mats of tule.  Each house had a small acorn house constructed on legs in order to store the acorns they would collect and protect from deer and insects.

The Miwoks had no pottery, made no fabric, and planted no seeds.  They kept no domestic animals.  Instead, they were gatherers, fisherman, hunters, and basket makers.

Several middens on Angel Island have produced bones, shell money from clams, abalone jewelry, skins, snail shell beads, mortars and pestles, wreckage from ships, and redwood driftwood from crematoriums.  Obsidian points used in arrows were common.

Roles

Men and women had special roles, but equal standing.  In the winter, men would make foot drums, rattles, reed flutes, and bone whistles.  They would work on their boats, and hunted and fished all year long, the prey depending on the season.  Women would make tule mats, baskets, collect beads, feathers, and shells, and prepare skins to make both ceremonial clothing and capes for wear during the cool season.  Women also made tule skirts, which was generally the only clothing they wore, along with their jewelry.

In the spring, women would collect greens such as lettuce, clover, and nettle, to supplement their winter diet.  Miner’s lettuce would be collected and placed near a red ant hill.  The ants walked on the leaves and exuded a vinegar-like substance, which became the Miwok’s salad dressing.  In the summer, they collected seeds from wildflowers to make pinole, the basic ingredient for their bread.  Autumn brought intensive labor for the whole family, as many hundreds of pounds of acorns had to be collected from the oak trees, sorted, prepared, and stored for the year ahead.  Angel Island provided excellent nutrition for the Miwok.  Plants and wildlife provided everything they needed.

The Miwok did not appear to differentiate between work and play.  Everyone down to the smallest child was productive.

Hunting and Cooking

Hunting required extensive preparation, building the sweat lodge so that the  hunters could get rid of the human smell.  They made deer heads to wear, pulled bows and arrows through the smoke to take away the human odor, and rubbed their bodies with angelica and mugwort.  The philosophy of the hunt was retreat and lure, rather than chase and flee.  They caught birds using baskets, put plant bulbs in the water to stun the fish, and prepared various types of nets to catch salmon, geese, seagulls, and other wildlife.

Food preparation required intensive labor.  Cooking was mainly done in water-proof baskets.  Rocks were heated, mush and water were placed in the basket and rocks added carefully, being replaced as they grew cold.  Meat, fowl, and fish were broiled over fires.

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These Native Americans, called the Ohlone (a Miwok Indian word meaning " western people"), often utilized the island as a place of isolation or banishment for ...

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The Miwok Indian tribe had many subgroups that were located across California. Many of these Miwok tribes were named for the regional areas where they originated, such as the Lake Miwok in Lake County, the Plains Miwok in the San Joaquin delta, the Southern Miwok along the Mariposa Creek and the Bodega Miwok in the Bodega Bay coastal area.

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FULL ANSWEResuxyts

The Miwok Indian tribe had many subgroups that were located across California. Many of these Miwok tribes were named for the regional areas where they originated, such as the Lake Miwok in Lake County, the Plains Miwok in the San Joaquin delta, the Southern Miwok along the Mariposa Creek and the Bodega Miwok in the Bodega Bay coastal area.

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The Miwok Indian tribe lived in northern and central California centuries ago. Some of their villages were located along the Cosumnes River and Calaveras River in the Sierra Nevada while other villages were located near Mount Diablo and Yosemite National Park.

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Yosemite National Park ( yoh-SEM-ih-tee) is a national park in California. It is bordered on the southeast by Sierra National Forest and on the northwest by Stanislaus National Forest. The park is managed by the National Park Service and covers 759,620 acres (1,187 sq mi; 3,074 km ²) in four counties - centered in Tuolumne and Mariposa, extending north and east to Mono and south to Madera. Designated a World Heritage Site in 1984, Yosemite is internationally recognized for its cliffs, waterfalls, clear streams, giant sequoia groves, lakes, mountains, meadows, glaciers, and biological diversity. Almost 95 percent of the park is designated wilderness. Yosemite is one of the largest and least fragmented habitat blocks in the Sierra Nevada.

Its geology is characterized by granite and remnants of older rock. About 10 million years ago, the Sierra Nevada was uplifted and tilted to form its unique slopes, which increased the steepness of stream and river beds, forming deep, narrow canyons. About one million years ago glaciers formed at higher elevations. They eventually melted and moved downslope, cutting and sculpting the U-shaped Yosemite Valley.

European American settlers first entered the valley in 1851. Other travelers entered earlier, but James D. Savage is credited with discovering the area that became Yosemite National Park. Native Americans had inhabited the region for nearly 4,000 years, although humans may have first visited as long as 8,000 to 10,000 years ago.

Yosemite was critical to the development of the concept of national parks. Galen Clark and others lobbied to protect Yosemite Valley from development, ultimately leading to President Abraham Lincoln's signing of the Yosemite Grant of 1864 that declared Yosemite as federally preserved land. In 1890 John Muir led a successful movement to motivate Congress to establish Yosemite Valley and its surrounding areas as a National Park. This helped pave the way for the National Park System. Yosemite draws about four million visitors annually. Most visitors spend the majority of their time in the valley's seven square miles (18 km ²). The park set a visitation record in 2016, surpassing five million visitors for the first time.

The word Yosemite (derived from yohhe'meti, "they are killers" in Miwok) historically referred to the name that the Miwok gave to the Ahwahneechee People, the resident indigenous tribe. Previously, the region had been called "Ahwahnee" ("big mouth") by its only indigenous inhabitants, the Ahwahneechee. The term Yosemite in Miwok is easily confused with a similar term for "grizzly bear", and is still a common misconception.

The indigenous natives of Yosemite called themselves the Ahwahneechee, meaning "dwellers" in Ahwahnee. The Ahwahneechee People was the only tribe that lived within the park boundaries, but other tribes lived in surrounding areas. Together they formed a larger Indigenous population in California, called the Southern Sierra Miwok. They are related to the Northern Paiute and Mono tribes. Other tribes like the Central Sierra Miwoks and the Yokuts, who both lived in the San Joaquin Valley and central California, visited Yosemite to trade and intermarry.[page needed ] This resulted in a blending of culture that helped preserve their presence in Yosemite after early American settlements and urban development threatened their survival. Vegetation and game in the region were similar to modern times; acorns were a dietary staple, as well as other seeds and plants, salmon and deer.

The 1848-1855 California Gold Rush was a major event impacting the native population. It drew more than 90,000 European Americans to the area in less than two years, causing competition for resources between gold miners and residents. About 70 years before the Gold Rush, the indigenous population was estimated to be 300,000, quickly dropping to 150,000, and just ten years later, only about 50,000 remained. The reasons for such a decline included disease, birth rate decreases, starvation, and conflicts from the American Indian Wars. The conflict in Yosemite is known as the Mariposa War. It started in December 1850 when California funded a state militia to drive Native people from contested territory to suppress Native American resistance to the European American influx.

Yosemite tribes often stole from settlers and miners, sometimes killing them, in retribution for the extermination/domestication of their people, and loss of their lands and resources. The War and formation of the Mariposa Battalion was partially the result of a single incident involving James Savage, a Fresno trader whose trading post was attacked in December, 1850. After the incident, Savage rallied other miners and gained the support of local officials to pursue a war against the Natives. He was appointed United States Army Major and leader of the Mariposa Battalion in the beginning of 1851. He and Captain John Boling were responsible for pursuing the Ahwahneechee people, led by Chief Tenaya and driving them west, and out of Yosemite. In March 1851 under Savage's command, the Mariposa Battalion captured about 70 Ahwahneechee and planned to take them to a reservation in Fresno, but they escaped. Later in May, under the command of Boling, the battalion captured 35 Ahwahneechee, including Chief Tenaya, and marched them to the reservation. Most were allowed to eventually leave and the rest escaped. Tenaya and others fled across the Sierra Nevada and settled with the Mono Lake Paiutes. Tenaya and some of his companions were ultimately killed in 1853 either over stealing horses or a gambling conflict. The survivors of Tenaya's group and other Ahwahneechee were absorbed into the Mono Lake Paiute tribe.

Sculpture of Chief Tenaya made by Sal Maccarone for the Tenaya Lodge in Yosemite National Park

Accounts from this battalion were the first well-documented reports of European Americans entering Yosemite Valley. Attached to Savage's unit was Doctor Lafayette Bunnell, who later wrote about his awestruck impressions of the valley in The Discovery of the Yosemite. Bunnell is credited with naming Yosemite Valley, based on his interviews with Chief Tenaya. Bunnell wrote that Chief Tenaya was the founder of the Ahwahnee colony. Bunnell falsely believed that the word "Yosemite" meant "full-grown grizzly bear."

Indigenous peoples' continuing presence

After the Mariposa War, Native Americans continued to live in the Yosemite area in reduced numbers. The remaining Yosemite Ahwahneechee tribe members there were forced to relocate to a village constructed in 1851 by the state government. They learned to live within this camp and their limited rights, adapting to the changed environment by entering the tourism industry through employment and small businesses, manufacturing and selling goods and providing services. Their villages were destroyed and their people forced to relocate four different times. The U.S. Army was responsible for the village's destruction in 1851 and 1906, and the National Park Service was responsible for it in 1929 and 1969. In 1969, the National Park Service evicted the remaining Native people from their residences and destroyed their village as part of a fire-fighting exercise. A reconstructed "Indian Village of Ahwahnee" sits behind the Yosemite Museum, located next to the Yosemite Valley Visitor Center.

By the late 19th century, the population of all native inhabitants in Yosemite was difficult to determine, estimates ranged from thirty to several hundred. The Ahwahneechee people and their descendants were hard to identify. The last full-blooded Ahwahneechee died in 1931. Her name was Totuya, or Maria Lebrado. She was the granddaughter of Chief Tenaya and one of many forced out of her ancestral homelands. The Ahwahneechee live through the memory of their descendants, their fellow Yosemite Natives, and through the Yosemite exhibit in the Smithsonian and the Yosemite Museum. As a method of self-preservation and resilience, the Indigenous people of California proposed treaties in 1851 and 1852 that would have established land reservations for them, but Congress refused to ratify them. The Southern Sierra Miwuk Nation is seeking tribal sovereignty and federal recognition. The National Park Service created policies to protect sacred sites and allow Native People to return to their homelands and use National Park resources.

In 1855, entrepreneur James Mason Hutchings, artist Thomas Ayres and two others were the first tourists to visit. Hutchings and Ayres were responsible for much of Yosemite's earliest publicity, writing articles and special issues about the valley. Ayres' style was detailed with exaggerated angularity. His works and written accounts were distributed nationally, and an exhibition of his drawings was held in New York City. Hutchings' publicity efforts between 1855 and 1860 increased tourism to Yosemite. Natives supported the growing tourism industry by working as laborers or maids. Later, they performed dances for tourists, acted as guides, and sold handcrafted goods, notably woven baskets. The Indian village and its peoples fascinated visitors, especially James Hutchings who advocated for Yosemite tourism. He and others considered the indigenous presence to be one of Yosemite's greatest attractions.

Wawona was an early Indian encampment for Nuchu and Ahwahneechee people who were captured and relocated to a reservation on the Fresno River by Savage and the Mariposa Battalion in March 1851. Galen Clark discovered the Mariposa Grove of giant sequoia in Wawona in 1857. He had simple lodgings and roads built. In 1879, the Wawona Hotel was built to serve tourists visiting Mariposa Grove. As tourism increased, so did the number of trails and hotels to build on it.

Yosemite's first concession was established in 1884 when John Degnan and his wife established a bakery and store. In 1916, the National Park Service granted a 20-year concession to the Desmond Park Service Company. It bought out or built hotels, stores, camps, a dairy, a garage, and other park facilities. The Hotel Del Portal was completed in 1908 by a subsidiary of the Yosemite Valley Railroad. It was located at El Portal, California just outside of Yosemite.

Park service administrators felt that limiting the number of concessionaires in the park would be more financially sound. The Curry Company and its rival, the Yosemite National Park Company, were forced to merge in 1925 to form the Yosemite Park & Curry Company (YP&CC). The company built the Ahwahnee Hotel in 1926-27.

Concerned by the impact of commercial interests, citizens including Galen Clark and Senator John Conness advocated to protect the area. The 38th United States Congress passed legislation that was signed by President Abraham Lincoln on June 30, 1864, creating the Yosemite Grant. This is the first time land was set aside specifically for preservation and public use by the U.S. government, and set a precedent for the 1872 creation of Yellowstone national park, the nation's first. Yosemite Valley and the Mariposa Grove were ceded to California as a state park, and a board of commissioners was established two years later.

Galen Clark was appointed by the commission as the Grant's first guardian, but neither Clark nor the commissioners had the authority to evict homesteaders (which included Hutchings). The issue was not settled until 1872 when the homesteader land holdings were invalidated by the U.S. Supreme Court. Clark and the commissioners were ousted in 1880. This dispute reached the Supreme Court in 1880. The two Supreme Court decisions affecting management of the Yosemite Grant are considered precedents in land management law. Hutchings became the new park guardian.

Tourist access to the park improved, and conditions in the Valley became more hospitable. Tourism significantly increased after the first transcontinental railroad was completed in 1869, while the long horseback ride to reach the area was a deterrent. Three stagecoach roads were built in the mid-1870s to provide better access for the growing number of visitors.

Muir wrote articles popularizing the area and increasing scientific interest in it. Muir was one of the first to theorize that the major landforms in Yosemite Valley were created by alpine glaciers, bucking established scientists such as Josiah Whitney. Muir wrote scientific papers on the area's biology. Landscape architect Frederick Law Olmsted emphasized the importance of conservation of Yosemite Valley.

Overgrazing of meadows (especially by sheep), logging of giant sequoia, and other damage led Muir to become an advocate for further protection. Muir convinced prominent guests of the importance of putting the area under federal protection. One such guest was Robert Underwood Johnson, editor of Century Magazine. Muir and Johnson lobbied Congress for the Act that created Yosemite National Park on October 1, 1890. The State of California, however, retained control of Yosemite Valley and Mariposa Grove. Muir's writings raised awareness about the damage caused by sheep grazing, and he actively campaigned to virtually eliminate grazing from the Yosemite's high-country.

The newly created national park came under the jurisdiction of the United States Army's Troop I of the 4th Cavalry on May 19, 1891, which set up camp in Wawona with Captain Abram Epperson Wood as acting superintendent. By the late 1890s, sheep grazing was no longer a problem, and the Army made other improvements. However, he cavalry could not intervene to ease the worsening conditions. From 1899 to 1913, cavalry regiments of the Western Department, including the all Black 9th Cavalry (known as the "Buffalo Soldiers") and the 1st Cavalry, stationed two troops at Yosemite.

Bridalveil Fall and El Capitan, by Carleton Watkins (c. 1880)

Muir and his Sierra Club continued to lobby the government and influential people for the creation of a unified Yosemite National Park. In May 1903, President Theodore Roosevelt camped with Muir near Glacier Point for three days. On that trip, Muir convinced Roosevelt to take control of Yosemite Valley and Mariposa Grove away from California and return it to the federal government. In 1906, Roosevelt signed the enabling bill.

The National Park Service (NPS) was formed in 1916, and Yosemite was transferred to that agency's jurisdiction. Tuolumne Meadows Lodge, Tioga Pass Road, and campgrounds at Tenaya and Merced lakes were also completed in 1916. Automobiles started to enter the park in ever-increasing numbers following the opening of all-weather highways to the park. The Yosemite Museum was founded in 1926 through the efforts of Ansel Franklin Hall. In the 1920s, the museum featured Native Americans practicing traditional crafts, and many Southern Sierra Miwok continued to live in Yosemite Valley until they were evicted from the park in the 1960s. Although NPS helped create the museum, its early actions and organizational values were dismissive of Yosemite Natives and the Ahwahneechee. NPS in the early 20th century criticized and restricted the expression of indigenous culture and behavior. For instance park officials penalized Natives for playing games and drinking during the Indian Field Days of 1924. In 1929, Park Superintendent Charles G. Thomson concluded that the Indian village was aesthetically unpleasant and was limiting white settler development and ordered the camp to be burned down. In 1969, many Native residents left in search of work as a result of the decline in tourism. NPS demolished their empty houses, evicted the remaining residents, and destroyed the entire village. This was the last Indigenous settlement within the park.

In 1903, a dam in Hetch Hetchy Valley in the park was proposed. Its purpose was to provide water and hydroelectric power to San Francisco. Muir and the Sierra Club opposed the project, while others, including Gifford Pinchot, supported it. In 1913, the O'Shaughnessy Dam was approved via passage of the Raker Act.

In 1918, Clare Marie Hodges was hired as the first female Park Ranger in Yosemite. Following Hodges in 1921, Enid Michael was hired as a seasonal Park Ranger and continued to serve in that position for 20 years.

In 1984, preservationists persuaded Congress to designate 677,600 acres (274,200 ha), or about 89 percent of the park, as the Yosemite Wilderness-making it a wilderness area that thereby became off-limits to development. NPS reduced artificial inducements to visit the park, such as the , in which red-hot embers were pushed off a cliff near Glacier Point at night. Traffic congestion and parking in Yosemite Valley during the summer months has become a concern.

Park map

Yosemite National Park is located in the central Sierra Nevada. Three wilderness areas are adjacent to Yosemite: the Ansel Adams Wilderness to the southeast, the Hoover Wilderness to the northeast, and the Emigrant Wilderness to the north.

The 1,189 sq mi (3,080 km ²) park contains thousands of lakes and ponds, 1,600 miles (2,600 km) of streams, 800 miles (1,300 km) of hiking trails, and 350 miles (560 km) of roads. Two federally designated Wild and Scenic Rivers, the Merced and the Tuolumne, begin within Yosemite's borders and flow westward through the Sierra foothills into the Central Valley of California.

Almost all of the landforms are cut from the granitic rock of the Sierra Nevada Batholith (a batholith is a large mass of intrusive igneous rock that formed deep below the surface). About five percent of the park's landforms (mostly in its eastern margin near Mount Dana) are metamorphosed volcanic and sedimentary rocks. These roof pendants once formed the roof of the underlying granitic rock.

Erosion acting upon different types of uplift-generated joint and fracture systems is responsible for producing the valleys, canyons, domes, and other features. These joints and fracture systems do not move, and are therefore not faults. Spacing between joints is controlled by the amount of silica in the granite and granodiorite rocks; more silica tends to form a more resistant rock, resulting in larger spaces between joints and fractures.

Pillars and columns, such as Washington Column and Lost Arrow, are generated by cross joints. Erosion acting on master joints is responsible for shaping valleys and later canyons. The single most erosive force over the last few million years has been large alpine glaciers, which turned the previously V-shaped river-cut valleys into U-shaped glacial-cut canyons (such as Yosemite Valley and Hetch Hetchy Valley). Exfoliation (caused by the tendency of crystals in plutonic rocks to expand at the surface) acting on granitic rock with widely spaced joints is responsible for producing domes such as Half Dome and North Dome and inset arches like Royal Arches.

Yosemite Valley represents only one percent of the park area. The Tunnel View gives a view of the valley. El Capitan is a prominent granite cliff that looms over the valley, is a rock climbing favorite because of its diverse climbing routes and year-round accessibility. Granite domes such as Sentinel Dome and Half Dome rise 3,000 and 4,800 feet (910 and 1,460 m), respectively, above the valley floor. The park contains dozens of other granite domes.

The high country of Yosemite contains other important features such as Tuolumne Meadows, Dana Meadows, the Clark Range, the Cathedral Range, and the Kuna Crest. The Sierra crest and the Pacific Crest Trail run through Yosemite. Mount Dana and Mount Gibbs are peaks of red metamorphic rock. Granite peaks include Mount Conness. Mount Lyell is the highest point in the park, standing at 13,120 feet (4,000 m). The Lyell Glacier is the largest glacier in the and one of the few remaining in the Sierras.

The park has three groves of ancient giant sequoia (Sequoiadendron giganteum) trees; the Mariposa Grove (200 trees), the Tuolumne Grove (25 trees), and the Merced Grove (20 trees). This species grows larger in volume than any other and is one of the tallest and longest-lived.

The Merced River flowing through Yosemite Valley, a U-shaped valley

The Tuolumne and Merced River systems originate along the crest of the Sierras in the park and have carved river canyons 3,000 to 4,000 feet (910 to 1,220 m) deep. The Tuolumne River drains the entire northern portion of the park, an area of approximately 680 square miles (1,800 km ²). The Merced River begins in the park's southern peaks, primarily the Cathedral and Clark Ranges, and drains an area of approximately 511 square miles (1,320 km ²).

Hydrologic processes, including glaciation, flooding, and fluvial geomorphic response, have been fundamental in creating park landforms. The park contains approximately 3,200 lakes (greater than 100 m ²), two reservoirs, and 1,700 miles (2,700 km) of streams. Wetlands flourish in valley bottoms throughout the park, and are often hydrologically linked to nearby lakes and rivers through seasonal flooding and groundwater. Meadow habitats, distributed at elevations from 3,000 to 11,000 feet (910 to 3,350 m) in the park, are generally wetlands, as are the riparian habitats found on the banks of Yosemite's watercourses.

Yosemite is famous for its high concentration of waterfalls in a small area. Numerous sheer drops, glacial steps and hanging valleys in the park feature spectacular cascades, especially during April, May, and June (as the snow melts). Located in Yosemite Valley, Yosemite Falls is the fourth tallest waterfall in North America at 2,425 feet (739 m) in accordance with the World Waterfall Data Base. Also in the valley is the much lower volume Ribbon Falls, which has the highest single vertical drop, 1,612 feet (491 m). Perhaps the most prominent of the valley waterfalls is Bridalveil Fall. Wapama Falls in Hetch Hetchy Valley is another notable waterfall. Hundreds of ephemeral waterfalls become active in the park after heavy rains or melting snowpack.

Park glaciers are relatively small and occupy areas that are in almost permanent shade, such as north- and northeast-facing cirques. Lyell Glacier is the largest glacier in Yosemite (the Palisades Glaciers are the largest in the Sierra Nevada) and covers 160 acres (65 ha). None of the Yosemite glaciers are a remnant of the Ice Age alpine glaciers responsible for sculpting the Yosemite landscape. Instead, they were formed during one of the neoglacial episodes that have occurred since the thawing of the Ice Age (such as the Little Ice Age). Many Yosemite glaciers, such as the Black Mountain Glacier that was marked in 1871 and had gone by the mid-1980s, have disappeared. Yosemite's final two glaciers - the Lyell and Maclure glaciers - have receded over the last 100 years and are expected to disappear as a result of climate change.

Yosemite has a Mediterranean climate ( Köppen climate classification Csa), meaning most precipitation falls during the mild winter, and the other seasons are nearly dry (less than three percent of precipitation falls during the long, hot summers). Because of orographic lift, precipitation increases with elevation up to 8,000 feet (2,400 m) where it slowly decreases to the crest. Precipitation amounts vary from 36 inches (910 mm) at 4,000 feet (1,200 m) elevation to 50 inches (1,300 mm) at 8,600 feet (2,600 m). Snow does not typically accumulate until November in the high country. It deepens into March or early April.

At park headquarters (elevation of 4,018 feet (1,225 m)), January averages 38.0 °F (3.3 °C), while July averages 73.3 °F (22.9 °C). In summer the nights are much cooler than the days. An average of 45.5 days have highs of 90 °F (32 °C) or higher and an average of 105.6 nights with freezing temperatures. Freezing temperatures have been recorded in every month of the year. The record high temperature was 112 °F (44 °C) on July 22 and July 24, 1915, while the record low temperature was −7 °F (−22 °C) on January 1, 2009. Average annual precipitation is nearly 37 inches (940 mm), falling on 67 days. The wettest year was 1983 with 66.06 inches (1,678 mm) and the driest year was 1976 with 14.84 inches (377 mm). The most precipitation in one month was 29.61 inches (752 mm) in December 1955 and the most in one day was 6.92 inches (176 mm) on December 23, 1955. Average annual snowfall is 39.4 inches (1.00 m). The snowiest winter was 1948-1949 with 176.5 inches (4.48 m). The most snow in one month was 175.0 inches (4.45 m) in January 1993.

The park sat astride a passive continental margin during the Precambrian and early Paleozoic. Sediment was derived from continental sources and was deposited in shallow water. These rocks became deformed and metamorphosed.

Heat generated from the Farallon Plate subducting below the North American Plate led to the creation of an island arc of volcanoes on the west coast of proto-North America between the late Devonian and Permian periods. Material accreted onto the western edge of North America, and mountains were raised to the east in Nevada.

The first phase of regional plutonism started 210 million years ago in the late Triassic and continued throughout the Jurassic to about 150 million years before present ( BP). Around the same time, the Nevadan orogeny built the Nevadan mountain range (also called the Ancestral Sierra Nevada) to a height of 15,000 feet (4,600 m). This was a direct part of the creation of the Sierra Nevada Batholith. The resulting rocks were mostly granitic in composition and lay about 6 miles (9.7 km) below the surface. The second major pluton emplacement phase lasted from about 120 million to 80 million years ago during the Cretaceous. This was part of the Sevier orogeny.

Starting 20 million years ago (in the Cenozoic) and lasting until 5 million years ago, a now-extinct extension of Cascade Range volcanoes erupted, bringing large amounts of igneous material in the area. These igneous deposits blanketed the region north of the Yosemite region. Volcanic activity persisted past 5 million years BP east of the current park borders in the Mono Lake and Long Valley areas.

Exfoliation joints cause erosion in granitic rocks, creating many domes including Half Dome.

Starting 10 million years ago, vertical movement along the Sierra fault started to uplift the Sierra Nevada. Subsequent tilting of the Sierra block and the resulting accelerated uplift of the Sierra Nevada increased the gradient of western-flowing streams. The streams consequently ran faster and thus cut their valleys more quickly. Additional uplift occurred when major faults developed to the east, especially creating Owens Valley from Basin and Range-associated extensional forces. Sierra uplift accelerated again about two million years ago during the Pleistocene.

The uplifting and increased erosion exposed granitic rocks to surface pressures, resulting in exfoliation (responsible for the rounded shape of the many domes in the park) and mass wasting following the numerous fracture joint planes (cracks; especially vertical ones) in the now solidified plutons. Pleistocene glaciers further accelerated this process, while glacial meltwater transported the resulting talus and till from valley floors.

Numerous vertical joint planes controlled where and how fast erosion took place. Most of these long, linear and very deep cracks trend northeast or northwest and form parallel, often regularly spaced sets.

A series of glaciations further modified the region starting about 2 to 3 million years ago and ending sometime around 10,000 BP. At least four major glaciations occurred in the Sierras, locally called the Sherwin (also called the pre-Tahoe), Tahoe, Tenaya, and Tioga. The Sherwin glaciers were the largest, filling Yosemite and other valleys, while later stages produced much smaller glaciers. A Sherwin-age glacier was almost surely responsible for the major excavation and shaping of Yosemite Valley and other canyons in the area.

The park has an elevation range from 2,127 to 13,114 feet (648 to 3,997 m) and contains five major vegetation zones: chaparral and oak woodland, lower montane forest, upper montane forest, subalpine zone, and alpine. Of California's 7,000 plant species, approximately 50 percent occur in the Sierra Nevada and more than 20 percent within the park. The park contains suitable habitat for more than 160 rare plants, with rare local geologic formations and unique soils characterizing the restricted ranges many of these plants occupy.

With its scrubby sun-baked chaparral, stately groves of pine, fir, and sequoia, and expanses of alpine woodlands and meadows, Yosemite National Park preserves a Sierra landscape as it prevailed before Euro-American settlement. In contrast to surrounding lands, which have been significantly altered by logging, the park contains some 225,510 acres (91,260 ha) of old-growth forest. Taken together, the park's varied habitats support over 250 species of vertebrates, which include fish, amphibians, reptiles, birds, and mammals.

Yosemite's western boundary has habitats dominated by mixed coniferous forests of ponderosa pine, sugar pine, incense cedar, white fir, Douglas fir, and a few stands of giant sequoia, interspersed by areas of black oak and canyon live oak. These habitats support relatively high wildlife diversity. Wildlife include black bear, coyote, raccoon, mountain kingsnake, Gilbert's skink, white-headed woodpecker, bobcat, river otter, gray fox, red fox, brown creeper, two species of skunk, cougar, spotted owl, and bats.

At higher elevation, the coniferous forests become purer stands of red fir, western white pine, Jeffrey pine, lodgepole pine, and the occasional foxtail pine. Fewer wildlife species tend to be found in these habitats, because of their higher elevation and lower complexity. Animals include golden-mantled ground squirrel, chickaree, fisher, Steller's jay, hermit thrush, and American goshawk. Reptiles are not common, but include rubber boa, western fence lizard, and northern alligator lizard.

As the landscape rises, trees become smaller and more sparse, with stands broken by areas of exposed granite. These include lodgepole pine, whitebark pine, and mountain hemlock that, at highest elevations, give way to vast expanses of granite as treeline is reached. The climate in these habitats is harsh and the growing season is short, but species such as pika, yellow-bellied marmot, white-tailed jackrabbit, Clark's nutcracker, and black rosy finch are adapted to these conditions. Treeless alpine habitats are favored by Sierra Nevada bighorn sheep. This species is found in the Yosemite area only around Tioga Pass, where a small, reintroduced population exists.

At a variety of elevations, meadows provide important habitat. Animals come to feed on the green grasses and use the flowing and standing water found in many meadows. Predators follow. The interface between meadow and forest is favored by many animal species because of the proximity of open areas for foraging and cover for protection. Species that are highly dependent upon meadow habitat include great grey owl, willow flycatcher, Yosemite toad, and mountain beaver.

The black bears of Yosemite were once famous for breaking into parked cars to steal food. They were an encouraged tourist sight for many years at the park's garbage dumps, where they congregated to eat garbage and tourists gathered to photograph them. Increasing bear/human encounters and increasing property damage led to an aggressive campaign to discourage bears from interacting with people and their stuff. The open-air dumps were closed; trash receptacles were replaced with bear-proof receptacles; campgrounds were equipped with bear-proof food lockers so that people would not leave food in their vehicles (easy targets). Because bears who show aggression towards people usually are destroyed, park personnel have come up with innovative ways to lead bears to associate humans and their property with experiences such as getting hit with a rubber bullet. As of 2001, about 30 bears a year were captured and ear-tagged and their DNA sampled so that, when bear damage occurs, rangers can ascertain which bear was causing the problem.[needs update ]

Despite the richness of high-quality habitats in Yosemite, the brown bear, California condor, and least Bell's vireo have become extinct in the park within historical time, and another 37 species currently have special status under either California or federal endangered species legislation. The most serious current threats include loss of a natural fire regime, exotic species, air pollution, habitat fragmentation, and climate change. On a more local basis, factors such as road kills and the availability of human food have affected some wildlife species.

The yellow star thistle competes with Yosemite's native plants.[117]

Yosemite National Park has documented the presence more than 130 non-native plant species within park boundaries. They were introduced into Yosemite following the migration of early Euro-American settlers in the late 1850s. Natural and human-caused disturbances, such as wildland fires and construction activities, have contributed to a rapid increase in the spread of non-native plants. Some of these species invade and displace the native plant communities, impacting park resources. Non-native plants can bring about significant ecosystem changes by altering native plant communities and the processes that support them. Some non-native species may cause an increase in fire frequency or increase the available soil nitrogen that allow non-native plants to establish. Many non-native species, such as yellow star thistle ( Centaurea solstitialis), are able to produce a long tap root that allows them to out-compete the native plants for available water.

Bull thistle (Cirsium vulgare), common mullein (Verbascum thapsus), and Klamath weed (Hypericum perforatum) have been identified as noxious pests in Yosemite since the 1940s. More recently recognized species are yellow star thistle ( Centaurea solstitialis), sweet clover ( spp.), Himalayan blackberry (Rubus armeniacus), cut-leaved blackberry (Rubus laciniatus) and large periwinkle (Vinca major).

Increasing ozone pollution causes damage tissue to sequoia trees, making them more vulnerable to insect infestation and disease. Since the cones of these trees require fire-touched soil to germinate, historic fire suppression has reduced their ability to reproduce. Planned prescribed fires may help the germination issue.

Indigenous residents intentionally set small fires in the early 1860s and before to clear the ground of brush as part as their farming practices, speeding growth. These fires are comparable to contemporary practices such as controlled burns that are done by the U.S. Forest Service and others. Although it was not their primary reason, Yosemite Natives helped preserve biodiversity and resilience by lighting these small fires. Native Americans used fire as an early wildlife management tool to keep certain lands clear, resulting in more food for large animals and decreasing the chance of large forest fires which that now devastate forest ecosystems. Some early uncontrolled forest fires were set accidentally by the militia group led by Major John Savage when the group burned down the Ahwahneechee camp in an attempt to expel them. The house fires eventually spread to a large section of the forest and the militia group ended up having to abandon their raid to save their own camp from the conflagration.

Forest fires clear the park of dead vegetation, making way for new growth. Small fires damage the income generated by tourism. During late July and early August, 2018, the Valley and other sections of the park, temporarily closed due to the Ferguson Fire at its western boundary. The closing was the largest in almost thirty years.

Tunnel tree at Yosemite National Park in May 2022

Yosemite Valley is open year-round. Yosemite Conservancy, and Aramark at Yosemite offer nature walks, photography and art classes, stargazing programs, tours, bike rentals, rafting, mule and horseback rides, and rock climbing classes. Short walks and longer hikes access valley waterfalls, or walks among the sequoias in the Mariposa, Tuolumne, or Merced Groves are available. Private vehicles and tour buses travel to Glacier Point (summer-fall) to see valley and high country views. The scenic Tioga Road connects toTuolumne Meadows (May-October) for walking and hiking.

Traffic congestion in the valley is heavy during peak summer season. A free shuttle bus system operates in the valley. Parking in the valley during the summer is often full. Transit options are available from Fresno and Merced. Yosemite has 13 official campgrounds.

The natural and cultural history of Yosemite Valley is presented at the Yosemite Valley Visitor Center, the adjoining Yosemite Museum, and the Nature Center at Happy Isles. The parks' two National Historic Landmarks are the Sierra Club's LeConte Memorial Lodge (Yosemite's first public visitor center), and the Ahwahnee Hotel. Camp 4 is on the National Register of Historic Places.

In the winter, the park is snowed in. Tuolumne Meadows has great hiking, rock climbing, and mountain climbing.

Over 800 miles (1,300 km) of trails are available to hikers-everything from an easy stroll to a challenging mountain hike, or backpacking trips. One popular trail leads to the summit of Half Dome and requires a permit from Memorial Day weekend to Columbus Day. A maximum of 300 hikers, selected by lottery, are permitted to advance beyond the base of the subdome each day, including 225 day hikers and 75 backpackers.

Between late spring and early fall, much of the park can be accessed for backpacking trips. All overnight trips into the back country require a wilderness permit and most require approved bear-resistant food storage.

While some locations in Yosemite are accessible only on foot, other locations can be reached via road, including for viewing the night sky. The most famous road is Tioga Road.

Bicycles are allowed on the roads, but only 12 miles (19 km) of paved off-road trails ae available in Yosemite Valley itself; mountain biking is not allowed.

Rock climbing is an important part of Yosemite. In particular the valley is surrounded by summits such as Half Dome and El Capitan. Camp 4 is a walk-in campground in the Valley that was instrumental in the development of rock climbing as a sport, and is listed on the National Register of Historic Places. Climbers can generally be spotted in the snow-free months on anything from ten-foot-high (3 m) boulders to the 3,300-foot (1.0 km) face of El Capitan. Classes on rock climbing are offered there.

Some roads close in winter. Downhill skiing is available at the Badger Pass Ski Area-the oldest downhill skiing area in California, operating from mid-December through early April. Much of the park is open to cross-country skiing and snowshoeing, and backcountry ski huts are available. Wilderness permits are required for backcountry overnight ski trips.

The Bracebridge dinner is an annual holiday event, held since 1927 at the Ahwahnee Hotel, inspired by Washington Irving's descriptions of Squire Bracebridge and English Christmas traditions of the 18th century in his Sketch Book. Between 1929 and 1973, the show was organized by Ansel Adams.

Water activities are plentiful during warmer months. Rafting can be done through the valley on the Merced River from late May to July. Swimming pools are available at Yosemite Lodge and Curry Village.

Horsetail Fall flows over the eastern edge of El Capitan. This small waterfall usually flows only during winter and is easy to miss. On rare occasions during mid- to late February, it can glow orange when backlit by sunset. This unique lighting effect happens only on evenings with a clear sky. Minor haze or cloudiness can spoil the effect. Although entirely natural, the phenomenon is reminiscent of the human-caused Firefall that historically occurred from Glacier Point.

The opening scenes of Star Trek V: The Final Frontier (1989) were filmed in Yosemite National Park. Films such as The Last of the Mohicans (1920) and (1994) have also been shot there. The 2014 documentary Valley Uprising is centered around Yosemite Valley and its history with an emphasis on climbing culture. The Academy Award-winning 2018 documentary was filmed in Yosemite. The Dawn Wall, a 2017 documentary, was filmed there.

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2. ^ "Yosemite Falls". Merriam-Webster Dictionary.

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8. Spence, Mark (1996). "Dispossesing the Wilderness: Yosemite Indians and the National Park Ideal, 1864-1930". Pacific Historical Review. 65 (1): 27-59. doi:10.2307/3640826. ISSN 0030-8684. JSTOR 3640826.

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18. ^ Ashburner v. California 103 U.S. 575 (1880)

19. ^ Runte, Alfred (1990). Yosemite : The Embattled Wilderness. Lincoln: University of Nebraska Press. pp. 34-35, 50. ISBN 0803289413.

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21. ^ Furmansky, Dyana Z. (2009). Rosalie Edge, Hawk of Mercy: The Activist Who Saved Nature from the Conservationists. University of Georgia Press. pp. 200-07. ISBN 978-0820336763.

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30. This article incorporates public domain material from Wildlife Overview. National Park Service: Yosemite Park Service. December 22, 2004. Archived from the original on January 27, 2007.

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34. Maddrey, Joseph (2016). ^ The Quick, the Dead and the Revived: The Many Lives of the Western Film. McFarland. p. 175. ISBN 978-1476625492.

# data[].attributes.attachment_link.description
Yosemite National Park ( yoh-SEM-ih-tee ) is a national park in California. It is bordered on the southeast by Sierra National Forest and on the northwest by Stanislaus National Forest. The park is managed by the National Park Service and covers 759,620 acres (1,187 sq mi; 3,074 km 2) in four counties - centered in Tuolumne and Mariposa, extending north and east to Mono and south to Madera.

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