1. Key Terms and Definitions For Washington State History-7
Geographic Landforms
Key Terms and Definitions
For
Washington State History-7

2. Mountain
A landform that rises at least 1,000 feet above the surrounding area.

3. Valley
An elongated depression, usually with an outlet, between bluffs, hills or mountains.

4. Basin
A depression like a bowl that is a circular or oval shape in the ground.

5. Plateau
An elevated plain or flat-topped region of considerable extent.

6. Peninsula
An elongated portion of land nearly surrounded by water and connected to a larger body of land.

7. Harbor
A water area nearly surrounded by land or seawalls forming a safe anchorage for ships.

8. Bay
A body of water that is partly enclosed by land and is smaller than a gulf.

9. Coastline
The line that forms the boundary between land and the ocean.

10. Strait
A narrow waterway between two larger bodies of water.

11. Island
Land that is surrounded by water.

12. Slough
A tidal waterway that creates a muddy marshland and usually connects other tidal areas.

13. Tributary
A stream or river that flows into a larger river.

14. Headwater
The source of a stream or river.

15. River Mouth
Where a stream or river flows into a sea, lake, reservoir or ocean.