Mule trains take supplies to the trail crews in Sequoia National Park. Crews spend months in remote regions of the Sierra Nevada maintaining trails.

Written By Charles Wolford
Charles Wolford
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Lottery to hike California's tallest peak is very competitive — and is now open Photo of Kellie Hwang
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The Science Behind the Oldest Trees on Earth-How experts have determined that bristlecone pines, sequoias and baobabs have stood for thousands of years