10/06/2026
In the fall of 2022, a mountain lion in Nederland, Colorado, killed more than a dozen dogs in two months and nobody could stop it. Nederland sits at 8,200 feet in the foothills west of Boulder, surrounded by national forest. Mountain lions live in the timber above and around the town. Encounters are not unusual. A lion killing a dog is not unusual either.
Colorado Parks and Wildlife classifies it as wild cats being wild cats. What happened in Nederland between October and December 2022 was different. One lion, or possibly two, began systematically taking dogs from porches, yards, and leashes.
In early December, Caroline Bennett posted on a Nederland Facebook group that a lion had sn**ched her Australian shepherd from their porch. Another resident's dog was taken from a yard. Another was killed while the owner tried to fight the lion off. Three dogs disappeared from the same area within days of each other.
Residents built a digital tracker, a shared map logging every attack, sighting, and close call with the time, location, and outcome. The entries described lions trying to sn**ch dogs off porches, a lion killing three dogs despite the owner defending them, and dogs vanishing one after another from the same streets.
By mid-December, at least nine dogs were confirmed dead. By January, the count exceeded a dozen. Some were small breeds taken in the dark. Others were large. In April 2026 in Yucaipa, California, a mountain lion killed a 90-pound husky and a 65-pound Anatolian shepherd in the same backyard in broad daylight, captured on security camera. The owner said they thought having two large dogs would be enough protection. Mountain lions usually avoid large dogs, she said. Size is not a deterrent when the predator outweighs the dog and knows how to use an ambush.
A mountain lion hunts by waiting. It does not chase the way a coyote does. It sits in cover, watches the yard, picks the moment, and closes the distance in a short explosive rush. A dog on a porch at dusk does not know the lion is there until the lion is on it.
Predator kills on domestic pets in the United States are overwhelmingly coyotes, over 90 percent by most estimates. Bobcats account for roughly 7 percent. Great horned owls about 2.5 percent. Mountain lions, bears, and eagles combined make up less than half a percent.
The difference between coyote predation on pets and mountain lion predation on pets is not just scale. It is behavior. A coyote that kills a cat in a yard is an opportunist that happened to find a small animal in its path. A mountain lion that returns to the same porch on consecutive nights is a predator that has identified a reliable food source and incorporated it into its routine. The Nederland lion came back because the dogs kept being there.
Colorado Parks and Wildlife responded by planning to remove the lion. One resident shot and killed a lion when it targeted their dog. CPW said they had already planned to remove that specific animal, though not necessarily because of the dog attacks. The agency's position remained consistent: this is mountain lion habitat, people chose to live in it, and the cats are doing what cats do. Nederland residents who lost their dogs did not find that framing comforting.
Image is for illustration purposes only
Source: Colorado Sun / Yahoo News / McClatchy / Colorado Parks and Wildlife / CBS Los Angeles / KTLA / 3Retrievers Pet Detective.