Are bears a threat in Yosemite?

Attacks are rare—nobody has been killed or seriously injured by a bear in Yosemite. If a black bear approaches, always follow the above guidelines. If a black bear attacks while you're in Yosemite, fight back.



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Make sure you know before you go. In national parks where grizzlies live, such as Glacier or Grand Teton, rangers encourage you to carry bear spray. In others, such as Yosemite, where only black bears live, bear spray is not even permitted.

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Within Yosemite National Park, you may not sleep in your car or RV except in a campsite that you're registered to stay in (except at Camp 4, where sleeping in cars is not allowed because it's a walk-in campground). Sleeping in your car along the side of the road is not allowed.

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However, it's important to know your own abilities and hike within your limits—bringing the right layers, footwear, food and water. Trails at Yosemite range from relatively flat, smooth paths to steep, rocky cliffs with no guardrails. Study the trail maps and plan ahead to keep you and your hiking partners safe.

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Mountain lions—also called cougars, pumas or panthers—roam Yosemite's mountains and valleys. These important predators, native to the Americas, are a natural part of the Yosemite landscape.

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These large individuals of the Mountain Coyote are the present day wolves of the Yosemite region. No true wolf is known to have occurred anywhere in middle California since about 1870.

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Global climate change is impacting Yosemite. Worldwide emissions of greenhouse gases trap heat in the atmosphere, leading to rapid warming observed across the western US. Scientists project that average temperatures in the park may rise by 6.7–10.3°F between 2000 and 2100.

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Go for a Nighttime Nature Walk in Yosemite National Park A couple of popular nature walks include a visit to Lower Yosemite Falls or Bridalveil Fall (scheduled to reopen to the public in 2022). For those who enjoy more structure, Yosemite Conservancy also offers an easy 1-2 mile round trip nature walk at sunset.

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Here are some quick tips to help you be safe while hiking in Yosemite:
  1. Carry a headlamp on every hike, even short day hikes.
  2. Carry and drink plenty of water (a minimum of 1 quart every 2 hours)
  3. Sturdy footwear with good traction might save an ankle.


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While this national park tends to be one of the hardest to visit due to its high demand, it includes scenic beginner hiking trails for budding explorers. Don't feel pressure to become a pro at all things outdoors before planning your trip to Yosemite National Park.

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Once in hibernation, bears in Yosemite typically don't become active again until late March or April.

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If a bear approaches you or if you are in a campground, picnic area, parking lot, lodging area, or other developed area, act immediately to scare it away. Scare the bear away by yelling aggressively and as loudly as possible until the bear leaves.

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Bear spray and firearms are the last tools in your toolbox. They should not provide a false sense of security. It is recommended that you carry bear spray when hiking in bear country.

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