| A | B |
|---|
| basin | an area that is lower than surrounding land areas; some basins are filled with water. Example: San Bernardino Basin |
| bay | a body of water partially enclosed by land with a wide outlet to the ocean Example: San Francisco Bay |
| butte | isolated rocky hill, mountain with flat and step sides. Example: "the mittens" in Arizona |
| canyon | deep valley with high, steep walls. Example: Grand Canyon |
| cataract | Large water fall or steep rapids. Example: Iguassu in Brazil |
| delta | triangular plain formed by the gravel, silt, sand and clay deposited at a rivers mouth where it slows to meet another body of water. Example: Nile River |
| flood plain | broad plain on either sides of a river formed when sediment settles during floods Example: Limpopo River |
| glacier | Large body of ice that moves across earth's surface. Example: Columbia Glacier in Canada |
| hill | Natural land elevation smaller than a mountain Example: Chino Hills |
| island | Piece of land, smaller than a continent, completely surrounded by water Example: Catalina Island |
| isthmus | Narrow strip of land between two seas that connect two larger land areas Example: Isthmus of Panama |
| mesa | flattop, elevated landform Example: Colorado River Mesa |
| mountains | rugged mass surrounding landscape with steep slope and a peak or summit. Example: Rocky Mountains |
| mountain pass | gap between mountains Example: Cajon Pass |
| peninsula | Land surrounding by water on three sides Example: Baja Peninsula |
| plain | Larger area of relatively flat or gentle rolling land. Example: the Great Plains |
| plateau | a land area having a relatively level surface considerably raised above land on at least one side. Example: Arizona Desert |
| river mouth | Point when a river enters a lake, sea or ocean Example: Klamath River mouth |
| strait | a narrow passage of water connecting two large bodies of water Example: Strait of Gibraltar |
| tributary | a stream that flows to a larger stream or other body of water Example: Amazon River |
| valley | an elongated depression between uplands hills or mountains Example: San Gabriel |
| volcano | a vent in the earth's crust through which lava streams ashes Example: Mt. Shasta |
