Wyoming Level 4 Ecoregions Map
| er12d - Dissected Plateaus and Teton Basin |
| er17a - Black Hills Plateau |
| er17ao - Absaroka Volcanic Subalpine Zone |
| er17ap - Sedimentary Subalpine Zone |
| er17b - The Black Hills Plateau |
| er17c - Black Hills Core Highlands |
| er17g - Mid-elevation Sedimentary Mountains |
| er17h - High Elevation Rockland Alpine Zone |
| er17i - Absaroka-Gallatin Volcanic Mountains |
| er17j - Yellowstone Plateau |
| er17k - Granitic Subalpine Zone |
| er17l - Gneissic-Schistose Forested Mountains |
| er17m - Dry Mid-elevation Sedimentary Mountains |
| er17n - Cold Valleys |
| er17o - Partly Forested Mountains |
| er18a - Rolling Sagebrush Steppe |
| er18b - Bighorn Basin |
| er18c - Wet Valleys |
| er18d - Foothill Shrublands and Low Mountains |
| er18e - Salt Desert Shrub Basins | er18e - Laramie Basin |
| er18g - Bighorn Salt Desert Shrub Basin | er18g - Mid-elevation Uinta Mountains |
| er19f - Semiarid Foothills | er19f - Alpine Zone |
| er21b - Crystalline Subalpine Forests | er21b - Crystalline Mid-Elevation Forests and Shrublands |
| er21d - Foothills and Shrublands | er21d - Pine Ridge Escarpment |
| er25c - Moderate Relief Plains | er25c - Flat to Rolling Plains |
| er25f - Pine Bluffs and Hills | er25f - Sandy and Silty Tablelands |
| er25h - Platte River Valley and Terraces | er25h - Sagebrush Steppe |
| er43g - Semiarid Pierre Shale Plains | er43g - Central Grassland |
| er43p - Ponderosa Pine Forest-Savanna Hills | er43p - Mesic Dissected Plains |
| er43v - Pryor - Bighorn Foothills | er43v - Powder River Basin |
| er43x - Casper Arch |
Based on Ecoregions developed by the EPA this map describe areas of general similarity in ecosystems and in the type, quality, and quantity of environmental resources, as well as similarity of climate that can assist Wyoming gardenders.
