Woman killed in suspected mountain lion attack while hiking in northern Colorado
Jan 1, 2026, 7:26 PM
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 the state in more than 25 years, authorities said.
Wildlife officers later in the day located two mountain lions in the area and fatally shot the animals, said Kara Van Hoose with Colorado Parks and Wildlife
The attack occurred in the mountains south of the small community of Glen Haven, about 7 miles northeast of Estes Park and considered the gateway to the eastern entrance of Rocky Mountain National Park.
Shortly before noon, two hikers encountered a mountain lion near the woman’s body along a remote section of the Crosier Mountain trail, which is on a national forest.
The hikers threw rocks at the animal to scare it from the immediate area so they could try to help the woman, Van Hoose said. One of the hikers was a physician who attended to the victim and did not find a pulse, she said.
Details on the woman’s injuries and cause of death were not immediately released.
Van Hoose said the search for other mountain lions in the area was ongoing. She said circumstances would dictate whether any additional lions that are found are killed.
Sightings of mountain lions are common in the forested area where the suspected attack occurred, but there have not been any recent documented attacks on humans, Van Hoose said.
“This is a very common time of year to take mountain lion sightings and reports and especially in Larimer County, where this is very good mountain lion habitat,” she said. “Trails in this area are in pretty remote land, so it’s wooded, it’s rocky, there’s elevation gains and dips.”
Mountain lion attacks are rare and Colorado’s last suspected fatal attack was in 1999, when a 3-year-old was killed. Two years before that, a 10-year-old boy was killed by a lion and dragged away while hiking with family members in Rocky Mountain National Park.
Last year in Northern California two brothers were stalked and then attacked by a lion that they tried to fight off. One of the brothers was killed.
The animals, also known as cougars, catamounts and other names, can weigh 130 pounds (60 kilograms) and grow to more than six feet (1.8meters) long1. They eat primarily deer.
Colorado has an estimated 3,800-4,400 of the animals, which are classified as a big game species in the state and can be hunted.
