Half Dome is a mountain in Yosemite Valley. It is a dome that has been broken nearly in half, leaving a sharp face that sits at the far end of Yosemite Valley. It is one of the most popular features of Yosemite National Park and is often used as the symbol of both the valley and the park as a whole.
Half Dome is a popular hiking destination and can be ascended from Yosemite Valley or Glacier Point in one day although it is a strenuous hike. Half Dome is also a popular place for rock climbing as the sheer face provides a challenging and scenic climb.