| Project Name | Status | County | Project type | Primary Threat | |
|---|---|---|---|---|---|
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L-19-F | Progress | Pueblo | ||
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La Morada | Alert | Costilla | Colorado’s Most Endangered | Economic Challenges, Lack of Maintenance, Natural Elements, Vacancy |
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Lafayette Head Home & Ute Indian Agency | Progress | Conejos | Colorado’s Most Endangered | Demolition by Neglect |
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Las Animas Christian Church | Complete | Bent | Historic Structure Assessment | |
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Leadville Mining District | Progress | Lake | Colorado’s Most Endangered | Demolition |
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Lewis Mill | Saved | San Miguel | Colorado’s Most Endangered | Demolition by Neglect |
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Lime Kilns | Saved | Pitkin | Colorado’s Most Endangered | Demolition by Neglect |
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Lizzy Knight’s Cabin | Alert | Dolores | Colorado’s Most Endangered | Demolition by Neglect |
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Ludlow Massacre Site | Complete | |||
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Maitland Arroyo Bridge | Progress | Huerfano | Colorado’s Most Endangered | Demolition, Lack of Maintenance, Road Expansion |
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Manitou Springs Spa | Saved | El Paso | Colorado’s Most Endangered | Natural Elements |
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Manzanola United Methodist Church | Complete | Otero | Historic Structure Assessment | |
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Mathews-Gotthelf House | Complete | Denver | Exterior Rehabilitation, Exterior Restoration, Historic Structures Assessment | |
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McElmo Creek Flume | Saved | Montezuma | Colorado’s Most Endangered | Natural Elements |
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McIntire Ranch & Mansion | Alert | Conejos | Colorado’s Most Endangered | Demolition by Neglect |
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McLaughlin Building | Progress | Pueblo | Colorado’s Most Endangered | Demolition by Neglect |
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Mid-Century Resources of Littleton Boulevard | Progress | Arapahoe | Colorado’s Most Endangered | Development |
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Missouri Creek Bridge | Progress | Huerfano | Colorado’s Most Endangered | Demolition, Lack of Maintenance, Road Expansion |
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Moffat Road / Hill Route | Progress | Boulder, Gilpin, Grand | Colorado’s Most Endangered | Demolition by Neglect, Development |
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Montezuma Bank Building |













