THE NATIONAL MONUMENTS. 



ADMINISTERED BY THE NATIONAL PARK SERVICE, DEPARTMENT OF THE INTERIOR. 



[Number, 24; total area, 1,815. 22 square miles; chronologically in order of creation.] 



i Estimated. 2 Donated to the United States . 



3 From Mar. 2, 1889, until Aug. 3, 1918, classified as a National Park. 



