| Agricultural Resources of Boulder County MPS (1) |
| Agricultural Resources of Phillips County, Colorado 1889-1965 MPS (2) |
| Archaic Period Architectural Sites in Colorado MPS (1) |
| Aspen MRA (18) |
| Camp George West MPS (3) |
| Colorado College MPS (10) |
| Colorado National Monument MPS (6) |
| Colorado's Mid Century Schools, 1945-1970 MPS (3) |
| Commercial Resources of the East Colfax Avenue Corridor (3) |
| Culebra River Villages of Costilla County MPS (6) |
| Denver Mountain Parks MPS (16) |
| Denver Park and Parkway System TR (31) |
| Dinosaur National Monument MRA (3) |
| Downtown Denver MPS (10) |
| Great Pueblo Period of the McElmo Drainage Unit MPS (14) |
| Highway Bridges in Colorado MPS (28) |
| Hinsdale County Metal Mining MPS (10) |
| Historic Farms and Ranches of Weld County MPS (7) |
| Historic Radium, Uranium, and Vanadium Mining Resources in the Uravan Mineral Belt, Colorado MPS (2) |
| Jules Jacques Benois Benedict Architecture in Colorado MPS (3) |
| Lafayette Coal Mining Era Buildings TR (6) |
| Louisville MRA (12) |
| Manitou Springs MRA (3) |
| Marble MPS (5) |
| Mesa Verde National Park’s Early Administrative Resources MPS (4) |
| Metal Mining and Tourist Era Resources of Boulder County MPS (11) |
| Mining Industry in Colorado, MPS (13) |
| Mining Resources of San Juan County, Colorado MPS (1) |
| New Deal Resources on Colorado's Eastern Plains MPS (20) |
| Ornamental Concrete Block Buildings in Colorado MPS (6) |
| Park County, Colorado Historic Cemeteries MPS (1) |
| Prehistoric Paleo-Indian Cultures of the Colorado Plains MPS (2) |
| Railroads in Colorado, 1858-1948 MPS (15) |
| Ranching Resources of South Park, Colorado MPS (3) |
| Redstone MPS (3) |
| Residential Subdivisions of Metropolitan Denver, 1940-1965 MPS (2) |
| Rocky Mountain National Park MPS (15) |
| Rocky Mountain National Park MRA (31) |
| Rural School Buildings in Colorado MPS (47) |
| US Post Offices in Colorado, 1900-1941, TR (14) |
| Vehicular Bridges in Colorado TR (29) |
| West Colfax TR (5) |
