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| | Conservation Movement: Conservation Chronology 1912-1920 |
 | | Congress passes a bill establishing Lafayette National Park, Maine, superseding Sieur de Monts National Monument, as the first National Park east of the Mississippi; it is renamed Acadia National Park in 1929. |
 | | President Wilson issues a Proclamation establishing Sieur de Monts National Monument on Mount Desert Island, Maine, on lands conveyed to the United States by a private citizens' group, the Hancock County Trustees of Public Reservations; and a Proclamation establishing Capulin Mountain National Monument, New Mexico. |
 | | Congress passes a bill establishing Grand Canyon National Park, Arizona, superseding Grand Canyon National Monument, and a bill establishing Zion National Park, Utah, superseding Zion National Monument. |
| lcweb2.loc.gov /ammem/amrvhtml/cnchron6.html |
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