| Project Name | Status | County | Project type | Primary Threat | |
|---|---|---|---|---|---|
 |
Downtown Underground Denver | Progress | Denver | Various | |
|
|
Downtown Underground Durango | Progress | La Plata | Various | |
|
|
Downtown Underground Florence | Progress | Fremont | Various | |
|
|
Downtown Underground Fort Collins | Progress | Larimer | Various | |
|
|
Downtown Underground Greeley | Progress | Weld | Various | |
|
|
Downtown Underground Lake City | Progress | Hinsdale | Various | |
|
|
Downtown Underground Leadville | Progress | Lake | Various | |
|
|
Downtown Underground Pueblo | Progress | Pueblo | Various | |
|
|
Downtown Underground Salida | Progress | Chaffee | Various | |
|
|
Downtown Underground Trinidad | Progress | Las Animas | Various | |
|
|
Downtown Underground Victor | Progress | Teller | Various | |
|
|
Downtown Underground Walsenburg | Progress | Huerfano | Various | |
 |
Doyle Settlement | Progress | Pueblo | Colorado's Most Endangered | Demolition by Neglect |
|
|
Dukes-Dunlap House and Garage | Complete | Larimer | Exterior Restoration | |
|
|
Dunn’s Block | Complete | Saguache | Acquisition | |
 |
Durango Power House | Saved | La Plata | Colorado's Most Endangered | Demolition |
 |
East Portal Camp Cabins | Progress | Gilpin | Colorado's Most Endangered | Demolition by Neglect |
 |
El Corazon de Trinidad Commercial District | Saved | Las Animas | Colorado's Most Endangered | Various |
 |
Elk Creek Barn & Octagon at Shaffer’s Crossing | Alert | Jefferson | Colorado's Most Endangered | Demolition by Neglect |
 |
Elkhorn Lodge | Alert | Larimer | Colorado's Most Endangered | Development |
