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.
Carrizo National Monument was created in 2001.
Pinnacles National Monument was created in 1908.
Tumacacori National Monument was created in 1908.
Wupatki National Monument was created in 1924.
Mukuntuweap National Monument was created in 1909.
Soldiers' National Monument was created in 1869.
Biscayne National Monument was created in 1968.
Wheeler National Monument was created in 1908.
Noatak National Monument was created in 1978.