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Mountain Lion Safety
What to know if you encounter a mountain lion
Posted Date: 8/7/2013 10:00 AM

Thank you to Mill Valley Councilmember Garry Lion for the following mountain lion safety information.

There have been numerous sightings of mountain lions on Horse Hill and Alto Bowl over the years, typically during twilight or dawn hours when out hunting deer, their favorite food. Here is some background information and instructions on what to do if you encounter one from a local Open Space District's website (lightly edited):


About half of California is prime mountain lion country. This fact is a surprise to many residents and visitors. These large, powerful predators have always lived here, preying on deer and other wildlife, and playing an important role in the ecosystem.

The status of the mountain lion in California evolved from that of "bountied predator" between 1907 and 1963, meaning monetary incentives were offered for every mountain lion killed, to "game mammal" in 1969, to "special protected mammal" in 1990. The change in legal status reflected growing public appreciation and concern for mountain lions.

You may live or play in mountain lion country. Like any wildlife, mountain lions can be dangerous. With a better understanding of mountain lions and their habitat, we can coexist with these magnificent animals.


Physical appearance: The mountain lion, also known as cougar, panther or puma, is tawny-colored with black-tipped ears and tail. Although smaller than the jaguar, it is one of North America's largest cats.

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 lion kittens, or cubs, are covered with blackish-brown spots and have dark rings around their tails. The markings fade as they mature.

Behavior: Mountain lions are very powerful and normally prey upon large animals, such as deer, bighorn sheep and elk. However, they can survive preying on small animals as well. They usually hunt alone, at night. They prefer to ambush their prey, often from behind. They usually kill with a powerful bite below the base of the skull, breaking the neck. They often cover the carcass with dirt, leaves or snow and may come back to feed on it over the course of a few days. Their generally secretive and solitary nature is what makes it possible for humans to live in mountain lion country without ever seeing a mountain lion.

Habitat: Mountain lions live in many different types of habitat in California, from deserts to humid coast range forests, and from sea level to 10,000 foot elevations. They generally will be most abundant in areas with plentiful deer.

Home Range: An adult male's home range often spans over 100 square miles. Females generally use smaller areas -- about 20 to 60 square miles.

Mortality: A mountain lion's natural life span is probably about 12 years in the wild and up to 25 years in captivity. Natural enemies include other large predators such as bears, lions and, at one time in California, wolves. They also fall victim to accidents, disease, road hazards and people.


Generally, mountain lions are calm, quiet and elusive. They are most commonly found in areas with plentiful prey and adequate cover. Such conditions exist in mountain subdivisions, urban fringes and open spaces. Consequently, the number of mountain lion/human interactions has increased. The increase likely is due to a variety of reasons: more people moving into mountain lion habitat, an increase in prey populations, an increase in mountain lion numbers and expanded ranges, more people using hiking and running trails in mountain lion habitat, and a greater awareness of the presence of mountain lions.

Even so, the potential for being killed or injured by a mountain lion is quite low compared to many other natural hazards. There is a far greater risk, for example, of being struck by lightning than of being attacked by a mountain lion.


There's been very little research on how to avoid mountain lion attacks. The following suggestions are based on studies of mountain lion behavior and analysis of attacks by mountain lions, tigers and leopards.

Do not hike alone. Go in groups, with adults supervising children.

Keep children close to you. Observations of captured wild mountain lions reveal that the animals seems especially drawn to children. Keep children within your sight at all times.

Do not approach a lion. Most mountain lions will try to avoid a confrontation. Give them a way to escape.

Do not run from a lion. Running may stimulate a mountain lion's instinct to chase. Instead, stand and face the animal. Make eye contact. If you have small children with you, pick them up if possible so they don't panic and run. Although it may be awkward, pick them up without bending over or turning away from the mountain lion.

Do not crouch down or bend over. In Nepal, a researcher studying tigers and leopards watched the big cats kill cattle and domestic water buffalo while ignoring humans standing nearby. He surmised that a human standing up is just not the right shape for a cat's prey. On the other hand, a person squatting or bending over looks a lot like a four-legged prey animal. If you're in mountain lion country, avoid squatting, crouching or bending over, even when picking up children.

Do all you can to appear larger. Raise your arms. Open your jacket if you are wearing one. Throw stones, branches, or whatever you can reach without crouching or turning your back. Wave your arms slowly and speak firmly in a loud voice. The idea is to convince the mountain lion that you are not prey and that you may be a danger to it.

Fight back if attacked. A hiker in Southern California used a rock to fend off a mountain lion that was attacking his son. Others have fought back successfully with sticks, caps, jackets, garden tools, and their bare hands. Since a mountain lion usually tries to bite the head or neck, try to remain standing and face the attacking animal.


If you are involved in a face-to-face encounter with a mountain lion, contact the Mill Valley Police at 389-4100 as soon as possible. The threat to public safety will be assessed and appropriate action will be taken. If injured in an attack, call 911.

The Marin County Humane Society, the California Department of Fish and Game, and the National Park Service all recommend the Mountain Lion Foundation as a good resource for safety and frequently asked questions:  Similar information can be found from National Parks at Point Reyes:



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