Horsetooth Mountain Open Space, 6550 W. County Road 38 E in Fort Collins, was indefinitely closed Thursday due to reported ...

Horsetooth Mountain Open Space west of Fort Collins was closed Thursday.

Larimer County announced a temporary closure of Horsetooth Mountain Open Space following a hiker's report of an encounter ...

The study also points to solutions. Researchers make concerning discovery after putting tracking devices on US mountain lions ...

Two mountain lions spotted near her body were euthanized. A necropsy revealed human DNA was found on one of those lions, Colorado Parks and Wildlife officials said.

This story contains content that may be sensitive to viewers. Viewer discretion is advised. Fish and wildlife biologists have ...

A woman was killed in a suspected mountain lion attack while she was hiking alone in the mountains of northern Colorado.

California wildlife officials are recommending threatened species protections for several mountain lion populations across Southern California and the Central Coast, saying the iconic cats continue to ...

A woman was killed in a mountain lion attack while hiking alone in northern Colorado. This is the first fatal attack in the state since the 1990s.

A woman was found dead in Colorado on New Year's Day after a suspected mountain lion attack, the first in the state since 1999, authorities told USA TODAY late last week. Two hikers came across the ...

A woman was killed in a suspected mountain lion attack while she was hiking alone in the mountains of northern Colorado on Thursday, in what would be the first fatal attack by one of the predators in ...