Geographical Reference Maps

Alabama (1)

1. Northern Valley
2. Appalachian Mountain
3. Upper Plains
4. Eastern Valley
5. Piedmont Plateau
6. Prairie
7. Coastal Plain
8. Gulf

Arizona (2)

1. Northwest
2. Northeast
3. North Central
4. East Central
5. Southwest
6. South Central
7. Southeast

Arkansas (3)

1. Northwest
2. North Central
3. Northeast
4. West Central
5. Central
6. East Central
7. Southwest
8. South Central
9. Southeast

California (4)

1. North Coast Drainage
2. Sacramento Drainage
3. Northeast Interior Basins
4. Central Coast Drainage
5. San Joaquin Drainage
6. South Coast Drainage
7. Southeast Desert Basins

Colorado (5)

1. Arkansas Drainage
2. Colorado Drainage
3. Kansas Drainage
4. Platte Drainage
5. Rio Grande Drainage

Connecticut (6)

1. Northwest
2. Central
3. Coastal

Delaware (7)

1. Northern
2. Southern

Florida (8)

1. Northwest
2. North
3. North Central
4. South Central
5. Everglades and Southwest Coast
6. Lower East Coast
7. Keys

Georgia (9)

1. Northwest
2. North Central
3. Northeast
4. West Central
5. Central
6. East Central
7. Southwest
8. South Central
9. Southeast

Idaho (10)

1. Panhandle
2. North Central Prairies
3. North Central Canyons
4. Central Mountains
5. Southwestern Valleys
6. Southwestern Highlands
7. Central Plains
8. Northeastern Valleys
9. Upper Snake River Plains
10. Eastern Highlands

Illinois (11)

1. Northwest
2. Northeast
3. West
4. Central
5. East
6. West Southwest
7. East Southeast
8. Southwest
9. Southeast

Indiana (12)

1. Northwest
2. North Central
3. Northeast
4. West Central
5. Central
6. East Central
7. Southwest
8. South Central
9. Southeast

Iowa (13)

1. Northwest
2. North Central
3. Northeast
4. West Central
5. Central
6. East Central
7. Southwest
8. South Central
9. Southeast

Kansas (14)

1. Northwest
2. North Central
3. Northeast
4. West Central
5. Central
6. East Central
7. Southwest
8. South Central
9. Southeast

Kentucky (15)

1. Western
2. Central
3. Blue Grass
4. Eastern

Louisiana (16)

1. Northwest
2. North Central
3. Northeast
4. West Central
5. Central
6. East Central
7. Southwest
8. South Central
9. Southeast

Maine (17)

1. North
2. South Interior
3. Coastal

Maryland (18)

1. Southeastern Shore
2. Central Eastern Shore
3. Lower Southern
4. Upper Southern
5. Northeastern Shore
6. North Central
7. Appalachian Mountains
8. Allegheny Plateau

Massachusetts (19)

1. West
2. Central
3. Coastal

Michigan (20)

1. West Upper
2. East Upper
3. Northwest Lower
4. Northeast Lower
5. West Central Lower
6. Central Lower
7. East Central Lower
8. Southwest Lower
9. South Central Lower
10. Southeast Lower

Minnesota (21)

1. Northwest
2. North Central
3. Northeast
4. West Central
5. Central
6. East Central
7. Southwest
8. South Central
9. Southeast

Mississippi (22)

1. Upper Delta
2. North Central
3. Northeast
4. Lower Delta
5. Central
6. East Central
7. Southwest
8. South Central
9. Southeast
10. Coastal

Missouri (23)

1. Northwest Prairie
2. Northeast Prairie
3. West Central Plains
4. West Ozarks
5. East Ozarks
6. Bootheel

Montana (24)

1. Western
2. Southwestern
3. North Central
4. Central
5. South Central
6. Northeastern
7. Southeastern

Nebraska (25)

1. Panhandle
2. North Central
3. Northeast
5. Central
6. East Central
7. Southwest
8. South Central
9. Southeast

Nevada (26)

1. Northwestern
2. Northeastern
3. South Central
4. Extreme Southern

New Hampshire (27)

1. North
2. South

New Jersey (28)

1. Northern
2. Southern
3. Coastal

New Mexico (29)

1. Northwestern Plateau
2. Northern Mountains
3. Northeastern Plains
4. Southwestern Mountains
5. Central Valley
6. Central Highlands
7. Southeastern Plains
8. Southern Desert

New York (30)

1. Western Plateau
2. Eastern Plateau
3. Northern Plateau
4. Coastal
5. Hudson Valley
6. Mohawk Valley
7. Champlain Valley
8. St. Lawrence Valley
9. Great Lakes
10. Central Lakes

North Carolina (31)

1. Southern Mountains
2. Northern Mountains
3. Northern Piedmont
4. Central Piedmont
5. Southern Piedmont
6. Southern Coastal Plain
7. Central Coastal Plain
8. Northern Coastal Plain

North Dakota (32)

1. Northwest
2. North Central
3. Northeast
4. West Central
5. Central
6. East Central
7. Southwest
8. South Central
9. Southeast

Ohio (33)

1. Northwest
2. North Central
3. Northeast
4. West Central
5. Central
6. Central Hills
7. Northeast Hills
8. Southwest
9. South Central
10. Southeast

Oklahoma (34)

1. Panhandle
2. North Central
3. Northeast
4. West Central
5. Central
6. East Central
7. Southwest
8. South Central
9. Southeast

Oregon (35)

1. Coastal Area
2. Willamette Valley
3. Southwestern Valleys
4. Northern Cascades
5. High Plateau
6. North Central
7. South Central
8. Northeast
9. Southeast

Pennsylvania (36)

1. Pocono Mountains
2. East Central Mountains
3. Southeastern Piedmont
4. Lower Susquehanna
5. Middle Susquehanna
6. Upper Susquehanna
7. Central Mountains
8. South Central Mountains
9. Southwest Plateau
10. Northwest Plateau

Rhode Island (37)

1. Rhode Island (Entire State)

South Carolina (38)

1. Mountain
2. Northwest
3. North Central
4. Northeast
5. West Central
6. Central
7. Southern

South Dakota (39)

1. Northwest
2. North Central
3. Northeast
4. Black Hills
5. Southwest
6. Central
7. East Central
8. South Central
9. Southeast

Tennessee (40)

1. Eastern
2. Cumberland Plateau
3. Middle
4. Western

Texas (41)

1. High Plains
2. Low Rolling Plains
3. North Central
4. East Texas
5. Trans Pecos
6. Edwards Plateau
7. South Central
8. Upper Coast
9. South
10. Lower Valley

Utah (42)

1. Western
2. Dixie
3. North Central
4. South Central
5. Northern Mountains
6. Uinta Basin
7. Southeast

Vermont (43)

1. Northeastern
2. Western
3. Southeastern

Virginia (44)

1. Tidewater
2. Eastern Piedmont
3. Western Piedmont
4. Northern
5. Central Mountain
6. Southwestern Mountain

Washington (45)

1. West Olympic Coast
2. North East Olympic San Juan
3. Puget Sound Lowlands
4. East Olympic Cascade Foothills
5. Cascade Mountains West
6. East Slope Cascades
7. Okanogan Big Bend
8. Central Basin
9. Northeastern
10. Palouse Blue Mountains

West Virginia (46)

1. Northwestern
2. North Central
3. Southwestern
4. Central
5. Southern
6. Northeastern

Wisconsin (47)

1. Northwest
2. North Central
3. Northeast
4. West Central
5. Central
6. East Central
7. Southwest
8. South Central
9. Southeast

Wyoming (48)

1. Yellowstone Drainage
2. Snake Drainage
3. Green and Bear Drainage
4. Big Horn
5. Powder, Little Mo and Tongue Drainages
6. Belle Fourche Drainage
7. Cheyenne Niobrara Drainage
8. Lower Platte
9. Wind River
10. Upper Platte

CONUS Climate Divisions

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