United States physiographic region

Physiographic Regions of the lower 48 United States\nCourtesy of the USGS. There are eight distinct physiographic divisions within the contential U.S., though each is composed of yet smaller physiographic subdivisions. These major divisions are the:

• Laurentian Highlands (areas labelled 1)\n*Atlantic Plain (labelled 2 and 3)\n*Appalachian Highlands (labelled 4-10)\n*Interior Plains (labelled 11-13)\n*Interior Highlands (labelled 14 and 15)\n*Rocky Mountain System (labelled 16-19)\n*Intermontane Plateaus (labelled 20-22)\n*Pacific Mountain System (labelled 23-25)

The map below shows these divisions together with their subdivisions. \n

US Physiographic Regions - USGS

Table of contents 1 LAURENTIAN UPLAND 2 ATLANTIC PLAIN 3 APPALACHIAN HIGHLANDS 4 INTERIOR PLAINS 5 INTERIOR HIGHLANDS 6 ROCKY MOUNTAIN SYSTEM 7 INTERMONTANE PLATEAUS 8 PACIFIC MOUNTAIN SYSTEM 9 External links LAURENTIAN UPLAND 1. Superior Upland ATLANTIC PLAIN \n2. Continental Shelf (not on map) 3. Coastal Plain \n:3a. Embayed section \n:3b. Sea Island section \n:3c. Floridian section \n:3d. East Gulf Coastal Plain \n:3e. Mississippi Alluvial Plain \n:3f. West Gulf Coastal Plain APPALACHIAN HIGHLANDS \n4. Piedmont province \n:4a. Piedmont Upland \n:4b. Piedmont Lowlands 5. Blue Ridge province \n:5a. Northern section \n:5b. Southern section 6. Valley and Ridge province \n:6a. Tennessee section \n:6b. Middle section \n:6c. Hudson Valley 7. St. Lawrence Valley \n:7a. Champlain section \n:7b. Northern section (not on map) 8. Appalachian Plateaus province \n:8a. Mohawk section \n:8b. Catskill section \n:8c. Southern New York section \n:8d. Allegheny Mountain section \n:8e. Kanawha section \n:8f. Cumberland Plateau section \n:8g. Cumberland Mountain section 9. New England Province \n:9a. Seaboard Lowland section \n:9b. New England Upland section \n:9c. White Mountain section \n:9d. Green Mountain section \n:9e. Taconic section 10. Adirondack province INTERIOR PLAINS \n11. Interior Low Plateaus \n:11a. Highland Rim section \n:11b. Lexington Plain \n:11c. Nashville Basin 12. Central Lowland \n:12a. Eastern Lake section \n:12b. Western Lake section \n:12c. Wisconsin Driftless section \n:12d. Till Plains \n:12e. Dissected Till Plains \n:12f. Osage Plains 13. Great Plains province \n:13a. Missouri Plateau, glaciated \n:13b. Missouri Plateau, unglaciated \n:13c. Black Hills \n:13d. High Plains \n:13e. Plains Border \n:13f. Colorado Piedmont \n:13g. Raton section \n:13h. Pecos Valley \n:13i. Edwards Plateau \n:13j. Central Texas section

\n INTERIOR HIGHLANDS \n14. Ozark Plateaus \n:14a. Springfield-Salem plateaus \n:14b. Boston "Mountains" 15. Ouachita province \n:15a. Arkansas Valley \n:15b. Ouachita Mountains ROCKY MOUNTAIN SYSTEM \n16. Southern Rocky Mountains\n \n17. Wyoming Basin 18. Middle Rocky Mountains 19. Northern Rocky Mountains INTERMONTANE PLATEAUS \n20. Columbia Plateau \n:20a. Walla Walla Plateau \n:20b. Blue Mountain section \n:20c. Payette section \n:20d. Snake River Plain \n:20e. Harney section 21. Colorado Plateaus \n:21a. High Plateaus of Utah \n:21b. Uinta Basin \n:21c. Canyon Lands \n:21d. Navajo section \n:21e. Grand Canyon section \n:21f. Datil section 22. Basin and Range province \n:22a. Great Basin \n:22b. Sonoran Desert \n:22c. Salton Trough \n:22d. Mexican Highland \n:22e. Sacramento section PACIFIC MOUNTAIN SYSTEM \n23. Cascade-Sierra Mountains \n:23a. Northern Cascade Mountains \n:23b. Middle Cascade Mountains \n:23c. Southern Cascade Mountains \n:23d. Sierra Nevada 24. Pacific Border province \n:24a. Puget Trough \n:24b. Olympic Mountains \n:24c. Oregon Coast Range \n:24d. Klamath Mountains \n:24e. California Trough \n:24f. California Coast Ranges \n:24g. Los Angeles Ranges 25. Lower California province

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Courtesy of USGS

External links

\n*http://tapestry.usgs.gov