| Project Name | Status | County | Project type | Primary Threat | |
|---|---|---|---|---|---|
 |
L-19-F | Progress | Pueblo | ||
|
|
Lafayette Head Home & Ute Indian Agency | Progress | Conejos | Colorado's Most Endangered | Demolition by Neglect |
|
|
Lake Fork Bridge | Progress | Gunnison | ||
|
|
Las Animas Christian Church | Complete | Bent | Historic Structure Assessment | |
|
|
Leadville Mining District | Progress | Lake | Colorado's Most Endangered | Demolition |
|
|
Lewis Mill | Saved | San Miguel | Colorado's Most Endangered | Demolition by Neglect |
|
|
Lime Kilns | Saved | Pitkin | Colorado's Most Endangered | Demolition by Neglect |
|
|
Lizzy Knight’s Cabin | Alert | Dolores | Colorado's Most Endangered | Demolition by Neglect |
|
|
Los Piños River Bridge | Progress | La Plata | ||
|
|
Ludlow Massacre Site | Complete | |||
|
|
Main Street Bridge | Progress | Fremont | ||
|
|
Maitland Arroyo Bridge | Progress | Huerfano | ||
|
|
Manitou Springs Spa | Saved | El Paso | Colorado's Most Endangered | Natural Elements |
|
|
Manzanola United Methodist Church | Complete | Otero | Historic Structure Assessment | |
|
|
Mathews-Gotthelf House | Complete | Denver | Exterior Rehabilitation, Exterior Restoration, Historic Structures Assessment | |
|
|
McElmo Creek Flume | Saved | Montezuma | Colorado's Most Endangered | Natural Elements |
|
|
McIntire Ranch & Mansion | Alert | Conejos | Colorado's Most Endangered | Demolition by Neglect |
|
|
McLaughlin Building | Progress | Pueblo | Colorado's Most Endangered | Demolition by Neglect |
|
|
Mid-Century Resources of Littleton Boulevard | Progress | Arapahoe | Colorado's Most Endangered | Development |
|
|
Missouri Creek Bridge | Progress | Huerfano |
