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High Plains

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Map Legend & Subregion List

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NameColor on MapEPA Code‡
Pine Ridge Escarpment25a
Rolling Sand Plains25b
Moderate Relief Plains25c
Flat to Rolling Plains25d
Canadian/Cimarron High Plains25e
Pine Bluffs and Hills25f
Sandy and Silty Tablelands25g
Platte River Valley and Terraces25h
Llano Estacado25i
Shinnery Sands25j
Arid Llano Estacado25k
Front Range Fans25l

† 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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Complete w/ Images

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