Mount Rushmore National Memorial

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NPS Sites Authorized this Decade: 15
NPS Sites Authorized to Date: 57

1920 through 1929
January 24, 1923 - Aztec Ruins NM, NM
March 2, 1923 - Hovenweep NM, CO-UT
May 31, 1923 - Pipe Spring NM, AZ
June 8, 1923 - Bryce Canyon NP, UT (originally a NM; redesignated Utah NP 1924; redesignated NP 1928)
October 25, 1923 - Carlsbad Caverns NP, NM (originally Carlsbad Cave NM; redesignated NP May 14, 1930)
May 2, 1924 - Craters of the Moon NM, ID (proclaimed)
December 9, 1924 - Wupatki NM, AZ
February 26, 1925 - Glacier Bay NP, AK (originally NM; established as NP and NPres Dec 2, 1980)
March 23, 1925 - Mount Rushmore NMem, SD (acquired 1939)
May 22, 1926 - Shenandoah NP, VA (authorized)
May 22, 1926 - Great Smoky Mts NP, NC-TN (authorized)
May 25, 1926 - Mammoth Cave NP, KY (authorized)
February 26, 1929 - Grand Teton NP, WY
March 4, 1929 - Badlands NP, SD (originally NM; redesignated a NP Nov 10, 1978)
April 12, 1929 - Arches NP, UT (originally NP; redesignated a NP Nov 12, 1971)
May 11, 1929 - Holy Cross NM, Colorado (abolished 1950)