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Yellowstone becomes 1st national park
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1st US Cavalry enters Yellowstone
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Yosemite becomes a national park
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Forest Reserve Act
Presidents can set aside public land as national forests -
Arrest for sending artifacts abroad
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Act to Protect the Birds and Animals in Yellowstone
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US Forest Service created (called "Division of Forestry")
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Mt. Rainier becomes the first national park created from a national forest
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Lacey Bird and Game Act
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Antiquities Act
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National Park Service created
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Civilian Conservation Corps created
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Wild and Scenic Rivers Act
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Endangered Species Act