Most people hiking the trails around Boulder expect to spot a hawk circling the Flatirons or catch a mule deer grazing near the tree line. A mountain lion is a different kind of encounter entirely. Yet sightings near Boulder’s open space have become common enough that the city has its own urban wildlife management program, trail cameras document them regularly, and Colorado Parks and Wildlife has been developing a dedicated Front Range management plan for some time.
This isn’t a sudden invasion. It’s the result of a set of interlocking factors that have been building quietly for decades. Understanding why these big cats are appearing near your favorite trail requires a look at history, habitat, and human behavior alike.
Boulder Has Always Been Mountain Lion Country
Boulder’s Open Space and Mountain Parks lands are home to both black bears and mountain lions. That’s not a recent development. Much of Colorado, including the Front Range, is prime mountain lion country – a simple fact that surprises many residents and visitors. These large, powerful predators have always lived here, preying on plentiful deer and playing an important role in the ecosystem.
In Colorado, mountain lions are most abundant in foothills, canyons, and mesa country. They are more at home in brushy areas and woodlands than in forests or open prairies. Boulder sits directly at this interface, wrapped by terrain that is effectively ideal mountain lion habitat…