Are there ticks in Yosemite?

Soft ticks are found mainly in forested foothill and mountain regions above 3,000 feet, including Yosemite National Park. Those who get sick with TBRF are usually infected while visiting mountain areas and staying in cabins or buildings that are infested with rodents and soft ticks.



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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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American black bears found in Yosemite National Park have long been of intense interest to park visitors and managers. Seeing one of the approximately 300 to 500 black bears in Yosemite can evoke excitement, awe, and fear. If visitors spot a bear while in the park, it is a black bear-not a brown or grizzly bear.

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Invasive species have a negative impact on natural resources nationwide, including in Yosemite National Park. Non-native animal species, like the New Zealand mud snail, concern park scientists because this species can completely cover a river streambed, thereby altering the ecosystem.

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Cellular Phone Service Yosemite Valley and Tuolumne Meadows have good signals. The best signal is in the Yosemite Village area near the Visitor Center. Signals also tend to be dependable in Crane Flat and right outside the park in El Portal.

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Our water is perfectly safe to drink, bath and swim in, but we recommend that you bring bottled water for drinking, due to the fact that our water has a high mineral content.

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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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Big Bend National Park in Texas is the National Park with the largest snake population in the United States. This park has 31 species, of which 4 are rattlesnakes. The best time to find a snake in the National Park is during the summer after it has rained.

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The winner: The opportunities for wilderness adventure in Yellowstone are many, but Yosemite has it all, from gentle trails along the floor of the valley to spine-tingling ascents of its rock faces. Plus, Yosemite remains open to many activities through the winter, while Yellowstone goes into bear-like hibernation.

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While true altitude sickness is normally only the concern of mountaineers heading for high summits, you can experience mild symptoms from the elevation in Yosemite—headaches, shortness-of-breath, and the like—as low as 5,000 feet. Staying a step ahead of altitude sickness means taking things slow.

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