Following a tragic incident in Larimer County where a mountain lion fatally attacked a woman, Colorado Parks and Wildlife (CPW) has terminated the active search for a third lion that was believed to be involved. Despite efforts by CPW officers, federal agency staff, and trained dogs over 72 hours, no additional lions were detected. According to Colorado Parks and Wildlife, the Crosier Mountain Trail, where the attack took place, has reopened with educational and warning signage about mountain lion activity.
CPW Regional Manager Mark Leslie expressed his condolences, stating, "Our hearts go out to the victim's family. This is a terrible tragedy," as per Colorado Parks and Wildlife. Leslie articulated the sorrow of a community grappling with the loss of a woman who simply sought the solace of nature on the first day of a new year. Individuals who encounter mountain lion sightings or conflicts are urged by CPW to report them immediately to the appropriate authorities.
Pathologists performed necropsies on two subadult lions, an approximately 12-month-old male and a female, which were in good condition and tested negative for rabies. Human DNA was found on the male; however, none was present on the female. Having tracked and euthanized these two lions, CPW officers called off their pursuit of the third lion due to the absence of evidence suggesting its presence. Leslie pointed out, "This is not a decision we take lightly," as obtained by Colorado Parks and Wildlife, emphasizing CPW's obligation to prioritize human safety.
Prior mountain lion interactions in the region, extending back to October 2025, have included attacks on pets and close encounters with humans. Prompt reporting, as stressed by CPW Area Wildlife Manager Jason Duetsch, is crucial for an effective response to such wildlife conflicts. Advocates for the safety of both residents and wildlife, CPW details the behavior of mountain lions in the county, predominantly solitary creatures that may aggressively defend their kills.
