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Northwestern Great Plains

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To check where a specific point lies, you can look it up in our Ecoregion Locator.

↑Map Legend & Subregion List

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Name†Color on MapEPA Code‡
Missouri Plateau○43a
Little Missouri Badlands○43b
River Breaks○43c
Forested Buttes○43d
Sagebrush Steppe○43e
Subhumid Pierre Shale Plains○43f
Semiarid Pierre Shale Plains○43g
White River Badlands○43h
Keya Paha Tablelands○43i
Moreau Prairie○43j
Dense Clay Prairie○43k
Missouri Breaks Woodland-Scrubland○43l
Judith Basin Grassland○43m
Montana Central Grasslands○43n
Unglaciated Montana High Plains○43o
Pine Scoria Hills○43p
Mesic Dissected Plains○43q
Niobrara River Breaks○43r
Non-calcareous Foothill Grassland○43s
Shield-Smith Valleys○43t
Limy Foothill Grassland○43u
Pryor-Bighorn Foothills○43v
Powder River Basin○43w
Casper Arch○43x

† Status: ✓ = Complete ○ = Needs Image … = Incomplete ∅ = Stub Only

‡ This code refers to the US EPA's Level 4 ecoregion codes for the continental U.S., see here.

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