Prevent Mountain Lion Encounters in Winter

Published on December 16, 2025

Los Alamos County is home to several large predators, including the MOUNTAIN LION. Mountain lions are most active at dusk and dawn. They are typically more energetic in the cooler months, which is driven by their instinct to hunt and eat.

Here are some important tips:

• Make your yard less attractive: Remove potential food sources and structure your landscape to make it harder for predators to hide.
• Supervise children: Don't leave children alone.
• Keep children inside before dawn and make sure they are home before dusk.
• Secure pets: Don't leave pets outside unattended, especially at night. If you must let them out, keep them on a leash or in a fully enclosed or supervised area, and don't leave them out for long periods of time.
• Install outdoor lighting: Preferably with motion sensors to illuminate pathways and areas you walk.
• Stay on trails: When out on the trails, stay on the path to protect the habitat and for your safety, in case large predators are in the area.
• Avoid carcasses: Report dead animals to the NM Game and Fish Officer - (505) 487-0961.
• Be aware of your surroundings: If you encounter a mountain lion, stay calm, make noise, and back away slowly. Avoid running, which could trigger the animal's attack instinct.
• Make yourself appear large: Spread out your jacket behind your head and body, or extend your arms.
• Fight back if attacked: Use any handy weapons including backpacks, sticks, rocks, and even your bare hands.