Colorado Parks and Wildlife officers were called to investigate a mountain lion that had decided to climb a tree in Westminster on Tuesday and hang out for a while.

Bear and cub on a stroll and a mountain lion in a yard all caught on camera.

State officials advise anyone who sees the mountain lion to leave it alone and report the sighting to wildlife biologists.

A mountain lion on the prowl for a cool place to relax found a spot in the shade outside the rear sliding glass door of a Sherman Oaks home. The big cat sprawled out on a warm afternoon last Wednesday ...

A large mountain lion found in a Southern California residential neighborhood Friday morning prompted an emergency response as authorities warned residents to stay away from the area. The mountain ...