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a natural flowing watercourse, usually freshwater, flowing towards an ocean, sea, or lake

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a body of water connected to an ocean or lake, formed by an indentation of the shoreline

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a body of water where ships, boats and barges seek shelter from stormy weather

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31st Street Harbor is the newest and most anticipated addition to the Chicago harbor system. Completed in 2012 with slips for 1000 boats and a sustainable, eco-friendly design unrivaled in the industry, it provides an exceptional experience for boaters. All slips include metered electric, water (seasonal charge), and complimentary cable TV and Internet access and can accommodate boats from 35′-70′ in length. A naturally insulated parking garage and harbor house provide indoor winter boat storage in the off-season. A 63,000 sq. ft. green roof, rentable indoor community space, and brand new playground make 31st Street Harbor a welcome addition to the neighboring community.

Transient docking is available; you can submit reservation requests through the Dockwa app or website beginning May 1st. A fuel dock is available with gas and diesel service. Waste pump-out stations are also provided at no charge. The harbor has a 3-lane boat ramp with parking spaces for 14 trailers. Indoor heated and outdoor winter storage is available November-April.

*Winner of the ISS Fabian Cousteau Blue Award!

Amenities at 31st Street

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Boats and boating--Equipment and supplies

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31st Street Harbor is the newest and most anticipated addition to the Chicago harbor system. Completed in 2012 with slips for 1000 boats and a sustainable, eco-friendly design unrivaled in the industry, it provides an exceptional experience for boaters. All slips include metered electric, water (seasonal charge), and complimentary cable TV and Internet access and ...

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A butte is a flat-topped rock or hill formation with steep sides. canyon. A canyon is a deep valley with very steep sides

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a group of islands

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a narrow passage of water connecting two seas or two large areas of water.

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a flowing part of the river that is separated, usually by an island, and rejoins back down stream.

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a small arm of the sea, a lake, or a river.

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a large body of water surrounded by land.

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a piece of land almost surrounded by water or projecting out into a body of water

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a landform that forms from deposition of sediment carried by a river as the flow leaves its mouth and enters slower-moving or standing water

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a loosely compacted yellowish-gray deposit of windblown sediment of which extensive deposits occur, e.g., in eastern China and the American Midwest

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a deep gorge, typically one with a river flowing through it.

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A region drained by a river and its tributaries. A low-lying area on the Earth's surface in which thick layers of sediment have accumulated.

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an area of relatively level high ground.

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Plateaus are sculpted by geologic forces that lift them up and the wind and rain that wear them down into mesas, buttes, and canyons. Monument Valley and the Grand Canyon, both icons of the American Southwest, were chiseled from the Colorado Plateau.

Plateaus are built over millions of years as pieces of Earth's crust smash into each other, melt, and gurgle back toward the surface. Some owe their creation to a single process; others have been subjected to more than one during different epochs of Earth's history.

The highest and biggest plateau on Earth, the Tibetan Plateau in East Asia, resulted from a collision between two tectonic plates about 55 million years ago. The land buckled up along the seam of the collision and formed the Himalaya mountain range. Farther away, the crust uplifted but didn't crumple and wrinkle, creating instead a raised, flat, and wide open expanse known as the "roof of the world."

Formation From Under the Earth's Surface

Many plateaus form as magma deep inside the Earth pushes toward the surface but fails to break through the crust. Instead, the magma lifts up the large, flat, impenetrable rock above it. Geologists believe a cushion of magma may have given the Colorado Plateau its final lift beginning about ten million years ago.

Repeated lava flows that spill out from cracks in the ground and spread out over hundreds of square miles can also slowly build up massive plateaus. The Columbia Plateau in the U.S. Pacific Northwest and the Deccan Plateau of west-central India were formed by these runny lava flows.

Plateaus also form in the ocean, such as the Mascarene Plateau in the Indian Ocean, one of the few underwater features clearly visible from space. It extends approximately 770 square miles (2,000 square kilometers) between the Seychelles and Mauritius Islands.

The Power of Wind and Water

Other plateaus are created over time as wind and rain wear away the side of an uplifted region, giving it geographic distinction from the surrounding terrain. Wind and rain eventually wear plateaus down to mesas and buttes and sculpt odd landforms like the arches and hoodoos found in southern Utah's famed national parks.

Water is the greatest erosive force on plateaus. As they course along, rivers carve valleys into the rock, washing the sediment toward the sea. Over time, these valleys become giant, majestic chasms like the Grand Canyon, which is continually carved by the Colorado River.

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Plateaus are sculpted by geologic forces that lift them up and the wind and rain that wear them down into mesas, buttes, and canyons. Monument Valley and the Grand Canyon, both icons of the American Southwest, were chiseled from the Colorado Plateau.

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a naturally raised area of land, not as high or craggy as a mountain.

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A valley is a low area between hills, often with a river running through it.

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an area of low-lying land that is flooded in wet seasons or at high tide, and typically remains waterlogged at all times.

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A volcano is a rupture in the crust of a planetary-mass object, such as Earth, that allows hot lava, volcanic ash, and gases to escape from a magma chamber below the surface.

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A mountain is a large land form that stretches above the surrounding land in a limited area