| 18a Rolling Sagebrush Steppe |
| 18d Foothill Shrublands and Low Mountains |
| 18e Salt Desert Shrub Basins |
| 18f Laramie Basin |
| 20a Monticello-Cortez Uplands |
| 20b Shale Deserts and Sedimentary Basins |
| 20c Semiarid Benchlands and Canyonlands |
| 20d Arid Canyonlands |
| 20e Escarpments |
| 20f Uinta Basin Floor |
| 21a Alpine Zone |
| 21b Crystalline Subalpine Forests |
| 21c Crystalline Mid-Elevation Forests |
| 21d Foothill Shrublands |
| 21e Sedimentary Subalpine Forests |
| 21f Sedimentary Mid-Elevation Forests |
| 21g Volcanic Subalpine Forests |
| 21h Volcanic Mid-Elevation Forests |
| 21i Sagebrush Parks |
| 21j Grassland Parks |
| 22a San Luis Shrublands and Hills |
| 22b San Luis Alluvial Flats and Wetlands |
| 22c Salt Flats |
| 22e Sand Dunes and Sand Sheets |
| 25b Rolling Sand Plains |
| 25c Moderate Relief Plains |
| 25d Flat to Rolling Plains |
| 25l Front Range Fans |
| 26e Piedmont Plains and Tablelands |
| 26f Mesa de Maya/Black Mesa |
| 26g Purgatoire Hills and Canyons |
| 26h Pinyon-Juniper Woodlands and Savannas |
| 26i Pine-Oak Woodlands |
| 26j Foothill Grasslands |
| 26k Sandsheets |
