100 years of stewardship
On Aug. 25, 1916, President Woodrow Wilson signed the Organic Act establishing the National Park Service, which at the time oversaw 35 national parks and monuments. Little could President Wilson or the parks' stewards have predicted that their vision of nature and wildlife preservation would balloon into a vast network of 408 parks, forests, monuments, battlefields and coastline that have become some of the most visited tourism destinations in the world. Pictured here, Mather Point at Grand Canyon National Park.