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It’s rattlesnake season — Hikers urged to stay alert

Aug 5, 2026 | Education

As temperatures rise across the San Bernardino Mountains, residents and visitors are being reminded to stay alert for rattlesnakes while enjoying our beautiful hiking trails and outdoor spaces.

Rattlesnake activity has increased across Southern California this year, with multiple snake bites reported and officials warning hikers to use extra caution. Warmer temperatures bring snakes out into areas where people hike, walk their dogs and enjoy the outdoors.

Here in the Lake Arrowhead area, Mountains Community Health has previously warned that snakes become more active as temperatures rise. Rattlesnakes can be difficult to see because they blend naturally into rocks, leaves, brush and surrounding terrain.

Be careful on the trails

When hiking around Lake Arrowhead and throughout our mountain communities:

  • Stay on designated trails and avoid tall grass and heavy brush.
  • Watch carefully where you step and where you place your hands.
  • Wear sturdy, closed-toe shoes or hiking boots.
  • Look before stepping over rocks, logs or fallen trees.
  • Keep children close and dogs on a leash.
  • Avoid wearing headphones at a volume that prevents you from hearing your surroundings.
  • Never approach, touch or attempt to move a rattlesnake.
  • If you encounter one, give it plenty of space and slowly move away.

Remember, a rattlesnake may not always give you the familiar warning rattle before you see it.

If you are bitten

Treat a rattlesnake bite as a medical emergency and call 911 immediately. Stay as calm and as still as possible while waiting for emergency assistance. Do not cut the wound, attempt to suck out the venom, apply ice or use a tourniquet.

Our mountains offer some of the most beautiful hiking and recreation in Southern California. We share these forests with wildlife, and rattlesnakes are a natural part of our mountain environment.

Enjoy the outdoors, but be aware, be diligent and watch your step.

A little caution can make the difference between a wonderful day on the mountain and a serious emergency.

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