Glacier National Park
On May 11, 1910, Glacier National Park in Montana was created.
Grand Canyon National Park
Grand Canyon National Park was established by Congress in Arizona on February 26, 1919.
Grand Teton National Park
Grand Teton National Park in Wyoming was established on February 26, 1929.
Great Basin National Park
Established in 1986, Great Basin National Park is situated in east-central Nevada.
Great Sand Dunes National Park
On September 13, 2004, Congress established Great Sand Dunes National Park in southern Colorado.
Great Smoky Mountains National Park
In order to preserve the Appalachian mountains of North Carolina and Tennessee, Great Smoky Mountains National Park was established on June 15, 1934.
Guadalupe Mountains National Park
Guadalupe Mountains National Park in Texas was officially established on September 30, 1972.
Haleakalā National Park
On Maui, in Hawai'i, Haleakalā National Park preserves the beauty of the islands. The park was established on July 1, 1961.
Hawaiʻi Volcanoes National Park
Congress established the Hawaiʻi Volcanoes National Park on August 1, 1916.
Hot Springs National Park
Hot Springs National Park in Garland County, Arkansas, was established on April 20, 1832 as a reservation. The National Park designation did not occur until March 4, 1921.
Live Science newsletter
Stay up to date on the latest science news by signing up for our Essentials newsletter.