1917 |
Feb. 26 | Mount McKinley NP, Alaska (incorporated in Denali NP and NPres 1980) |
June 29 | Verendrye NM, North Dakota (abolished 1956) |
1918 |
March 18 | Zion NM, Utah (incorporated Mukuntuweap NM; redesignated a NP 1919) |
Aug. 3 | Casa Grande NM, Arizona (Casa Grande Ruin
Reservation redesignated and transferred from General Land Office; redesignated
Casa Grande Ruins NM 1926) |
Sept. 24 | Katmai NM, Alaska (incorporated in Katmai NP and NPres 1980) |
1919 |
Feb. 26 | Grand Canyon NP, Arizona (incorporated 1908 Grand Canyon NM from Agriculture Dept.) |
Dec. 12 | Scotts Bluff NM, Nebraska |
Dec. 12 | Yucca House NM. Colorado |
1922 |
Oct. 21 | Fossil Cycad NM, South Dakota (abolished 1956) |
1923 |
Jan. 24 | Aztec Ruin NM, New Mexico (redesignated Aztec Ruins NM 1928) |
March 2 | Hovenweep NM, Colorado and Utah |
May 31 | Pipe Spring NM, Arizona |
Oct. 25 | Carlsbad Cave NM, New Mexico (redesignated Carlsbad Caverns NP 1930) |
1924 |
May 2 | Craters of the Moon NM, Idaho |
June 7 | Utah NP, Utah (1923 Bryce Canyon NM
redesignated and transferred from Agriculture Dept.; redesignated Bryce Canyon NP
1928) |
Dec. 9 | Wupatki NM, Arizona |
1925 |
Feb. 26 | Glacier Bay NM, Alaska (incorporated in Glacier Bay NP and NPres 1980) |
Nov. 21 | Lava Beds NM, California |
1926 |
May 22 | Great Smoky Mountains NP, North Carolina and Tennessee |
May 22 | Shenandoah NP, Virginia |
May 25 | Mammoth Cave NP, Kentucky |
1929 |
Feb. 26 | Grand Teton NP, Wyoming |
March 4 | Badlands NM, South Dakota (redesignated a NP 1978) |
April 12 | Arches NM, Utah (redesignated a NP 1971) |
1930 |
Jan. 23 | George Washington Birthplace NM, Virginia |
July 3 | Colonial NM, Virginia (redesignated a NHP 1936) |
1931 |
Feb. 14 | Canyon de Chelly NM, Arizona |
March 3 | Isle Royale NP, Michigan |
1932 |
Feb. 25 | Bandelier NM, New Mexico (date transferred
from Agriculture Dept., where proclaimed 1916) |
March 17 | Great Sand Dunes NM, Colorado (redesignated a NP 2000) |
Dec. 22 | Grand Canyon NM, Arizona (incorporated in Grand Canyon NP 1975) |
1933 |
Jan. 18 | White Sands NM, New Mexico |
Feb. 11 | Death Valley NM, California and Nevada
(incorporated in Death Valley NP 1994) |
March 2 | Black Canyon of the Gunnison NM, Colorado (redesignated a NP 1999) |
March 2 | Morristown NHP, New Jersey |
Aug. 10 | Reorganization |