United States physiographic region
From Wikipedia, the free encyclopedia
There are eight distinct U. S. physiographic regions within the continental United States. Each is composed of smaller physiographic subdivisions.
These eight regions are:
- Canadian Shield (area labeled 1)
- Atlantic Plain (2 and 3)
- Appalachian Highlands (4-10)
- Interior Plains (11-13)
- Interior Highlands (14 and 15)
- Rocky Mountain System (16-19)
- Intermontane Plateaus (20-22)
- Pacific Mountain System (23-25)
See Physical geography of the U.S. for descriptions.
Contents |
[edit] Canadian Shield
[edit] Atlantic Plain
2. Continental Shelf (not on map)
3. Coastal Plain
- 3a. Embayed section
- 3b. Sea Island section
- 3c. Floridian section
- 3d. East Gulf Coastal Plain
- 3e. Mississippi Alluvial Plain
- 3f. West Gulf Coastal Plain
[edit] Appalachian Highlands
4. Piedmont province
- 4a. Piedmont Upland
- 4b. Piedmont Lowlands
5. Blue Ridge province
- 5a. Northern section
- 5b. Southern section
6. Valley and Ridge province
- 6a. Tennessee section
- 6b. Middle section
- 6c. Hudson Valley
- 7a. Champlain section
- 7b. Northern section (not on map)
8. Appalachian Plateaus province
- 8a. Mohawk section
- 8b. Catskill section
- 8c. Southern New York section
- 8d. Allegheny Plateau section
- 8e. Kanawha section
- 8f. Cumberland Plateau section
- 8g. Cumberland Mountain section
9. New England Province
- 9a. Seaboard Lowland section
- 9b. New England Upland section
- 9c. White Mountain section
- 9d. Green Mountain section
- 9e. Taconic section
10. Adirondack province
[edit] Interior Plains
11. Interior Low Plateaus
- 11a. Highland Rim section
- 11b. Lexington Plain
- 11c. Nashville Basin
12. Central Lowland
- 12a. Eastern Lake section
- 12b. Western Lake section
- 12c. Wisconsin Driftless section
- 12d. Till Plains
- 12e. Dissected Till Plains
- 12f. Osage Plains
13. Great Plains
- 13a. Missouri Plateau, glaciated
- 13b. Missouri Plateau, unglaciated
- 13c. Black Hills
- 13d. High Plains
- 13e. Plains Border
- 13f. Colorado Piedmont
- 13g. Raton section
- 13h. Pecos Valley
- 13i. Edwards Plateau
- 13j. Central Texas section
[edit] Interior Highlands
14. Ozark Plateaus
- 14a. Springfield-Salem plateaus
- 14b. Boston Mountains
15. Ouachita province
- 15a. Arkansas Valley
- 15b. Ouachita Mountains
[edit] Rocky Mountain System
16. Southern Rocky Mountains
17. Wyoming Basin
18. Middle Rocky Mountains
19. Northern Rocky Mountains
[edit] Intermontane Plateaus
20. Columbia Plateau
- 20a. Walla Walla Plateau
- 20b. Blue Mountain section
- 20c. Payette section
- 20d. Snake River Plain
- 20e. Harney section
- 21a. High Plateaus of Utah
- 21b. Uinta Basin
- 21c. Canyon Lands
- 21d. Navajo section
- 21e. Grand Canyon section
- 21f. Datil section
22. Basin and Range province
- 22a. Great Basin
- 22b. Sonoran Desert
- 22c. Salton Trough
- 22d. Mexican Highland
- 22e. Sacramento section
[edit] Pacific Mountain System
23. Cascade-Sierra Mountains
- 23a. Northern Cascade Mountains
- 23b. Middle Cascade Mountains
- 23c. Southern Cascade Mountains
- 23d. Sierra Nevada
24. Pacific Border province
- 24a. Puget Trough
- 24b. Olympic Mountains
- 24c. Oregon Coast Range
- 24d. Klamath Mountains
- 24e. California Trough
- 24f. California Coast Ranges
- 24g. Los Angeles Ranges
25. Lower California province
