By the early 1900s, the scenic qualities of the two-thousand-foot Navajo Sandstone cliffs in Zion Canyon had been recognized as a potential destination for tourism. In 1909, President Theodore Roosevelt signed an executive order designating…

Established in 1872, Yellowstone National Park had been selected by the Park Service to be the inaugural project for Mission 66 since it was the first national park. Like most national parks, planning for new building projects started well before…

On January 26, 1915, President Woodrow Wilson signed the Rocky Mountain National Park Act, establishing Rocky Mountain as a national park and securing its boundaries. Lodge keepers owned private lands throughout the park where they maintained roads,…

In the 1850s U.S. Army Lieutenant Amiel Whipple passed through the Painted Desert while surveying a route along the 35th Parallel. Impressed by the deposits of petrified wood, Whipple documented the finding, recording the first published account of…

In 1909, Earl Douglass, a paleontologist from the Carnegie Museum in Pittsburgh, discovered a site riddled with fossilized dinosaur bones in the northeastern corner of Utah and created a camp where he began excavating remains. In the following six…