Range
Distributed widely throughout the western U.S., including all four deserts of the American Southwest.
Habitat
Mountain Lions live in many different types of habitats, from deserts to humid coast range forest, and from sea level to 10,000-foot elevations. They are generally most abundant in areas with plentiful deer and adequate cover.
Description
The Mountain Lion, also known as the Cougar, Panther or Puma, is the most widely distributed cat in the Americas. It is unspotted -- tawny-colored above overlaid with buff below. It has a small head and small, rounded, black-tipped ears. Its long tail is also black-tipped.
Adult males may be more than 8 feet long from nose to end of tail and generally weigh between 130 and 150 pounds. Adult females can be 7 feet long and weigh between 65 and 90 pounds.
Mountain Lions are solitary, strongly territorial hunters who, unlike most cat species, may be active during the day. Normally, lions are very elusive, and people rarely get more than a brief glimpse of a Mountain Lion in the wild. They are, however, unpredictable and have been known to attack people.
The predatory behavior of a Mountain Lion is very similar to the domestic cat. The lion will attempt to conceal itself for a surprise attack while stalking its prey. A crouched position is assumed with the tail twitching and the ears upright. An agitated lion may snarl and lay its ears back.
For a video on the Mountain Lion Click Here 
Camping and Hiking in Mountain Lion Habitat
Please heed the following suggestions in order to reduce the chances of an unpleasant encounter with a Mountain Lion.
How to reduce the chances of an encounter with a Mountain Lion:
- Avoid hiking alone, especially between dusk and dawn, when lions normally do their hunting. Make plenty of noise while you hike so as to reduce the chances of surprising a lion.
- Always keep children in sight while hiking and within arm's reach in areas that can conceal a lion. Mountain Lions seem to be drawn to children.
- Hike with a good walking stick; this can be useful in warding off a lion.
How to reduce the chances of an attack when encountering a Mountain Lion:
- Do not approach a lion, especially if it is feeding or with its young. Most lions will avoid confrontation. Give them a way to escape.
- Stay calm and face the lion. Do not run because this may trigger the lion's instinct to attack. Try to appear larger by raising your hands.
- Pick up small children so they don't panic and run. This will also make you appear larger. Avoid bending over or crouching.
- If the lion acts aggressively, throw rocks, branches, or whatever can be obtained without turning your back or bending over.
- Fight back if attacked. Since a mountain lion usually tries to bite the head or neck, try to remain standing and face the attacking animal. People have successfully fought back with rocks, sticks, or bare hands.
Report any Mountain Lion sightings in a park to the park rangers
-- A.R Royo