Do people get altitude sickness at Yosemite?

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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Yosemite Valley sits at 4,000 feet above sea level and is not an area of concern for altitude sickness. When hiking in Yosemite's higher elevations, such as Tuolumne and areas around the rim of the Valley, you will generally be above 8,000 feet and should be conscious of your body's condition.

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Elevation plays a major role in temperature and precipitation variability. Since Yosemite varies in elevation from 2,000 feet to over 13,000 feet, the lower foothills of the park can be experiencing the rebirth of spring while the higher elevations remain in the grip of winter.

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