Yosemite Falls -- which form the highest waterfall in North America and the fifth-highest in the world -- are actually three falls, one on top of another. The water from the top descends a total of 2,425 feet, and when the falls run hard, you can hear them thunder all across the Valley. When they dry up, as often happens in late summer, the Valley seems naked without the wavering tower of spray. To view the falls up close, head to their base on the trail from Camp 4.
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