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First Fatal Mountain Lion Attack in Colorado Since 1999

1/4/2026

44 8 Full Breakdown

Summary

Story summary

On January 1, 2026, a woman was found dead on Crosier Mountain Trail in Larimer County, Colorado.
Authorities suspect this is the state's first fatal mountain lion attack since 1999.
Hikers reported a nearby mountain lion, prompting Colorado Parks and Wildlife (CPW) to euthanize two lions at the scene and perform necropsies to check for human DNA and diseases.

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Story summary

On January 1, 2026, a woman was found dead on Crosier Mountain Trail in Larimer County, Colorado.
Authorities suspect this is the state's first fatal mountain lion attack since 1999.
Hikers reported a nearby mountain lion, prompting Colorado Parks and Wildlife (CPW) to euthanize two lions at the scene and perform necropsies to check for human DNA and diseases.