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Vandalism found at Gettysburg National Military Park in Pennsylvania
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Rescuers run into Jay Leno while searching for missing California hiker in national forest
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Houston Texans host football game in hurricane-damaged stadium
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Hiker saved after becoming dehydrated, losing consciousness in Death Valley National Park
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Instagram filter helps you judge distance from wildlife
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BASE jumper killed in 500-foot plummet Grand Canyon National Park
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