Hikers in Yosemite National Park
With gas prices relatively low, the National Park Service has seen increases in the number of visitors camping, swimming, and picnicking.
During the summer, about 1 million visitors come to the 391 parks in the system. In June, Yellowstone reported May visitation was up 20% and Yosemite employees say cars have lined up for several hundred yards at some park entrances. To avoid crowds, some hikers have taken to trekking at night while wearing headlamps.
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