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National Park Service Founders Day


On this day in 1916, President Woodrow Wilson signed what is now called the Organic Act establishing the National Park Service. As part of the Department of Interior, the National Park Service is responsible for protecting 400 areas in each of the 50 states, U.S. territories and the District of Columbia totaling 84 million acres.

National Park Service Founders Day recognizes the superior conservation and preservation efforts of the National Parks System. Whether enjoying scenic trails, open spaces, watersheds or recreational areas, the National Parks Service provides a natural outdoor resource accessible to every American.


On National Park Service Founders Day, celebrate by visiting one of the 400 management areas across the country. Use #NPSFoundersDay to share on social media.


On August 25, 1916, President Wilson signed into law the Organic Act passed by Congress. It created the National Park Service which became a part of the Department of Interior. At the time there were 35 management areas including national parks and monuments.

Earlier Event: August 21
National Senior Citizen Day
Later Event: August 31
National Diatomaceous Earth Day