Climber killed by falling rock off Twin Sisters trail in Larimer County

January 23rd, 2026 at 11:12 PM

DENVER — A rock climber was killed after she was struck by a falling rock off Twin Sisters Trail in the area of Lily Lake.

The Larimer County Sheriff’s Office received the report around 11:30 a.m. Saturday.

The woman was pronounced deceased at the scene.

The sheriff’s office is investigating the incident as an unattended death.

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The coroner’s office will release the identity, cause and manner of death at a later time.

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