Colorado - Area of significance: Social History
| Nurses' Home |
| Old Ladore School |
| Opera House Block/Central Block Building |
| Orlando Flats |
| Osgood Castle |
| Our Lady of Guadalupe Church |
| Our Lady of Mount Carmel Church |
| Park County Courthouse and Jail |
| People's Methodist Episcopal Church |
| Perry-Mansfield School of Theatre and Dance |
| Pike's Peak Grange No. 163 |
| Pine Hall |
| Pitkin County Courthouse |
| Plaza de San Luis de la Culebra |
| Pleasant Valley School |
| Ponderosa Lodge |
| Prowers Country Welfare Housing |
| Pueblo City Park Zoo |
| Pueblo Mountain Park |
| Queen of Heaven Orphanage Summer Camp |
| Quick, Ben, Ranch and Fort |
| Raymond, Wilbur S., House |
| Redstone Historic District |
| Richthofen Castle |
| Rim Rock Drive Historic District |
| Rimrock School |
| Riverside Cemetery |
| Root, Amos H., Building |
| Roselawn Cemetery |
| Ross-Broadway Branch, Denver Public Library |
| Rossonian Hotel |
| Russell Gulch I.O.O.F. Hall No. 47-Wagner and Askew |
| Ruth Memorial Methodist Episcopal Church |
| Sacred Heart Orphanage |
| Saddlehorn Caretaker's House and Garage |
| Saddlehorn Comfort Station |
| Saddlehorn Utility Area Historic District |
| Sand Canyon Archaeological District |
| Santa Fe Trail Mountain Route-Bent's New Fort |
| Santa Fe Trail Mountain Route Trail Segments-Timpas Vicinity |
| Sedgwick County Courthouse |
| Seven Towers Pueblo |
| Sheedy Mansion |
| South Canon High School |
| South Park City Museum |
| South Ranch |
| S.P.M.D.T.U. Concilio Superior |
| Springfield Schoolhouse |
| Spring Valley School |
| Squires-Tourtellot House |
| Stanley Hotel |
| Sterling Public Library |
| St. John's Cathedral |
| St. Joseph's Church |
| St. Joseph's Polish Roman Catholic Church |
| St. Mark United Presbyterian Church |
| St. Mary's Catholic Church |
| St. Paul African Methodist Episcopal (AME) Church |
| Stratton's Independence Mine and Mill |
| St. Stephen's Episcopal Church, 1881 |
| Swink School |
| Tammen Hall |
| Tarryall School |
| Tears-McFarlane House |
| Tellurium-White Cross Mining Camp |
| The Bunk House Lodge |
| The Owl Club of Denver |
| Threemile Gulch |
| Tigiwon Community House |
| Tobasco Mine and Mill |
| Trinchera Cave Archeological District |
| Two Buttes Gymnasium |
| Ute Cemetery |
| Ute Memorial Site |
| Ute-Ulay Mine and Mill |
| Van Briggle Pottery Company |
| Veta Pass |
| Vincent-Hatchette Cabin |
| Vine Street Houses |
| Westside Neighborhood |
| Wheeler-Stallard House |
| White School |
| Wildhack's Grocery Store-Post Office |
| Willow Creek Park |
| Willows School |
| Winks Panorama |
| Wolfe, John, House |
| Wood-Morris-Bonfils House |
| Woods Canyon Pueblo |
| Young Women's Christian Association |
| Y.W.C.A. |
Data from United States Park Service and Wikidata