United States physiographic region


United States physiographic region

There are eight distinct physiographic divisions within the continental United States. Each is composed of smaller physiographic areas called provinces and sections respectively. [cite web | title = Physiographic Regions | publisher = United States Geological Survey | date = 2003-04-17 | url = http://tapestry.usgs.gov/physiogr/physio.html | accessdate = 2008-01-30 ]

These eight divisions are:
*Laurentian Upland (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.

Laurentian Upland

1. Superior Upland

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

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

7. St. Lawrence 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

Interior Plains

11. Interior Low Plateaux :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

Interior Highlands

14. Ozark Plateaus :14a. Springfield-Salem plateaus :14b. Boston Mountains

15. Ouachita province :15a. Arkansas Valley:15b. Ouachita Mountains

Rocky Mountain System

16. Southern Rocky Mountains 17. Wyoming Basin

18. Middle Rocky Mountains

19. Northern Rocky Mountains

Intermontane Plateaus

20. Columbia Plateau :20a. Walla Walla Plateau :20b. Blue Mountain section :20c. Payette section :20d. Snake River Plain :20e. Harney section

21. Colorado Plateaus :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

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

ee also

Physiographic regions of the world

Notes

External link and source

* [http://tapestry.usgs.gov/ Tapestry]


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