YELLOWSTONE ACT, 1872
AN ACT TO SET APART A CERTAIN TRACT OF
LAND LYING NEAR THE HEADWATERS OF THE
YELLOWSTONE RIVER AS A PUBLIC PARK
Approved March 1, 1872 (17 Stat. 32)
Be it enacted by the Senate and House of Representatives of the United States of America in Congress assembled, That the tract of land in the Territories of Montana and Wyoming, lying near the headwaters of the Yellowstone River. . is hereby reserved and withdrawn from settlement, occupancy, or sale under the laws of the United States, and dedicated and set apart as a publicpark or pleasuring-ground for the benefit and enjoyment of the people; and all persons who shall locate or settle upon or occupy the same, or any part thereof, except as hereinafter provided,shall be considered trespassers and removed therefrom. (U.S.C., title 16, sec. 21.)