Photo credit: National Park Service
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Gates of the Arctic — 9,591 visitors
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Lake Clark — 14,479 visitors
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Kobuk Valley — 14,937 visitors
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Isle Royale — 25,798 visitors
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American Samoa — 28,626 visitors
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North Cascades — 30,085 visitors
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Katmai — 37,818 visitors
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Dry Tortugas — 56,810 visitors
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Wrangell-St. Elias — 79,450 visitors
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Virgin Islands — 112,287 visitors
