A very large, slender cat with a small head, small rounded ears that are not tufted, very powerful shoulders and hindquarters, and a long, heavy, cylindrical tail. The coloration in adults is uniform. Upperparts are grizzled gray or dark brown to buff, cinnamon tawny, or rufous. Underparts are dull whitish overlaid with buff across the abdomen. The sides of the muzzle are black, and the chin and throat are white. The last two to three inches of the tail are black.
Similar species: Bobcats are smaller, with short tails, and the back and sides are yellowish to reddish brown streaked and spotted with black (not uniform in coloration).
Many mountain lion sightings in our state turn out to be cases of mistaken identity, but photos, tracks, hair, scat, and videos are some types of physical evidence used to confirm the presence of a mountain lion.