Half Dome is a granite dome in Yosemite National Park, located in northeastern Mariposa County, California, at the eastern end of Yosemite Valley ? possibly Yosemite's most familiar sight. The granite crest rises more than 4,737 ft (1,444 m) above the valley floor.
The park estimates that about 50,000 hikers use the cable handrails to climb Half Dome each year.
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