A steep, high face of rock.
A wide area of level or rolling, wet, tall grassland.
The deepest part of a river harbor
An artificial waterway used for irrigation or travel
A tall, isolated rocky hill or mountain with a flat top and steep sides.
A deep valley with high, steep walls.
A landform surrounded by water on three sides
A large area thickly covered with trees
Land covered by dense tropical vegetation.
A natural hot spring that intermittently ejects steam and hot water into the air.
A mass of floating ice that has broken away from a glacier.
A large, principal land mass.
A rugged mass of rock that rises above the surrounding landscape with steep slopes and a peak or summit
An area of a sea or ocean partially enclosed by land; larger than a bay.
An elongated lowland between mountain ranges or hills; often has a river or stream running along the bottom.
An open grassland with widely spaced trees in a hot, seasonally dry climate.
A wetlands area always or sometimes covered with shallow water whose main types of plants are soft-stemmed reeds, sedges, and grasses
A large area of relatively flat or gently rolling land.
A relatively narrow waterway joining two larger bodies of water.
An arc-shaped chain of islands.
A lowland region saturated by water.
A body of water partially enclosed by land with a wide outlet to the ocean.
A large body of ice that moves across the earth's surface.
A ridge or hill of sand blown or drifted by the wind in deserts or on beaches.
A triangular plain formed by the gravel, silt, sand, and clay deposited at a river's mouth where it slows to meet another body of water.
A pointed piece of land jetting into the sea from the coastline of a continent or large island.
A dry, barren region that receives little or no precipitation.
A long, relatively wide body of water, larger than a channel or strait, that often connects larger bodies of water.
A long, narrow coastal valley between tall, rocky cliffs, gouged out by a glacier and flooded by the sea.
Vast treeless plains with permafrost and small, low plants.
A natural stream of water descending from a steep height.
A sandy, pebbly, or rocky shore of a body of water.
A mound or ridge of coral polyps and their hard limestone remains, combined with sand and minerals.
A bowl-shaped depression in the earth or the funnel-shaped opening of a volcano.
The earth's largest continuous stretches of saltwater.
A piece of land, smaller than a continent, completely surrounded by water.
A barren area with eroded ridges, peaks and mesas, and sparse vegetation.
A shallow pool of water at the center of an atoll.
A natural land elevation smaller than a mountain.
A narrow strip of land between two seas or oceans that connects two larger land areas.
`A stream of water of considerable volume.
A narrow projection of a larger territory, as in Florida, Texas, and Oklahoma.
A ring-shaped island formed by coral buildup on the rim of an underwater volcano.
Flattop, elevated landform.
A large inland body of fresh or saltwater.
An underground hollow with an opening at the surface.
A dense tropical evergreen forest with an annual rainfall of at least 100 inches.
A body of saltwater surrounded almost entirely by land.
An opening in the earth's crust through which red-hot, melted rock, or magma rises to the surface from deep inside the earth and spills out as lava.
A very large, flat area of land that usually is higher than the land around it, with at least one steep slope.