Arches National Monument was created in 1929.
In 1929 as a national monument, but 1971 as a national park.
Arches National Park was officially named when President Herbert Hoover signed legislation on April 12, 1929, creating Arches National Monument. The US Congress officially changed the status of Arches National Monument to Arches National Park on November 12, 1971. The origin of the name "Arches" comes from the more than 2,000 natural sandstone arches preserved in the park.
Petroglyph National Monument was created in 1990.
Arches National Park was established as a national monument on April 12, 1929, and redesignated as a national park on November 12, 1971. It is located in southeastern Utah and is known for its stunning natural arches and rock formations.
Wupatki National Monument was created in 1924.
National Monument of Scotland was created in 1829.
Soldiers' National Monument was created in 1869.
Cabrillo National Monument was created in 1913.
Mukuntuweap National Monument was created in 1909.
Dinosaur National Monument was created in 1915.
Chiricahua National Monument was created in 1924.
Wheeler National Monument was created in 1908.