A mountain lion was sighted on the east side of McMillan Road between Buildings 6 and 71 at approximately 8:30 p.m. last Thursday. Mountain lions generally exist where deer are found. Warning signs have been placed at walkways and gate entrances. As a precaution, the use of isolated stairs and walkways at dusk, night, or dawn is discouraged. To limit an interaction with a mountain lion, avoid hiking or jogging in the undeveloped areas of the Lab alone or at dawn, dusk or night. If you see a mountain lion, immediately call 7-911 from any Lab phone or 911 from a cell phone. Go here for more safety information.