| Project Name | Status | County | Project type | Primary Threat | |
|---|---|---|---|---|---|
 |
4 Bar 4 Ranch | Saved | Grand | Colorado's Most Endangered | Demolition by Neglect |
 |
4UR Mine & Ranch | Complete | Stabilization | ||
 |
A Home on the Range | ||||
|
|
Adobe Potato Cellars | Progress | Alamosa, Conejos, Costilla, Rio Grande | Colorado's Most Endangered | Demolition by Neglect |
|
|
Alta Lakes | Progress | San Miguel | Colorado's Most Endangered | Demolition by Neglect |
|
|
Amache | Active | Prowers | Construction Documents, Documentary Film, Mothballing, Reconstruction, Restoration | |
|
|
Amache Internment Site | Saved | Prowers | Colorado's Most Endangered | Natural Elements |
 |
Amache – Granada Relocation Center | ||||
|
|
Anheuser-Busch Building | Active | Lake | Design, Development | |
|
|
Antelope Springs Church | Progress | Morgan | Colorado's Most Endangered | Demolition by Neglect |
|
|
Argo Tunnel and Mill-Newhouse Tunnel and Argo Mill-Newhouse Tunnel | Complete | Clear Creek | Construction Documents | |
|
|
Arkansas River Bridge | Progress | Pueblo | ||
|
|
Arkansas River Bridge (I-12-T) | Progress | Chaffee | ||
|
|
Arkansas River Bridge (J-12-E) | Progress | Chaffee | ||
|
|
Arkansas Valley Fairground Stables | Progress | Otero | Colorado's Most Endangered | Demolition by Neglect |
|
|
Arrowhead Lodge | Active | Larimer | Planning Grant | |
|
|
Baldpate Inn | Complete | Larimer | Emergency Stabilization | |
|
|
Bear Creek Bridge | Progress | Fremont | ||
|
|
Beaumont Home | Saved | Pueblo | Colorado's Most Endangered | Development |
|
|
Beaver Creek Bridge | Progress | Washington |
