The animal was seen at about 2:50 a.m. in the area of Lakeview Way and Oak Knoll Drive.
Residents are advised to not approach mountain lions, especially if they are feeding or with offspring.
Anyone who encounters a mountain lion should face it, make loud noises and try to appear large and threatening while throwing rocks or other objects at the cat, emergency officials said.
More information about mountain lions can be found online at www.keepmewild.org.