Chilling video captured by a Ring Floodlight Cam in Breckenridge, Colorado where a pack of mountain lions casually strolled up a driveway.

Colorado Parks and Wildlife advises that while no formal studies have been conducted to determine what to do if you encounter a mountain lion, some patterns of behavior and response are beginning to emerge based on observations by people who have encountered lions.

CPW  recommends if you encounter a mountain lion to stay calm, try to appear larger, back away slowly and fight back if necessary.