Wild Buffalo Wild Bison The first public park, Yellowstone, was established by an act of March 1, 1872 (17 Stat. 32). Yellowstone National Park was established in 1872, before the surrounding area became the states of Idaho, Montana, and Wyoming. Boundary changes, made twice, added small areas to the original rectangle and altered the east boundary in 1929 to conform for most of its length to the drainage divide formed by the Absaroka Mountains. Most of the land adjacent to the boundary is administered by the U.S. Forest Service. Nathaniel Pitt Langford : First superintendent of the Yellowstone Park.  Langford was … Read more