Named for the tribe, Arapahoe sits just off the edge of the Wind River Indian Reservation. In 1880, the Indian Service established the fist post office here. Annuities were distributed separately to the Arapaho and Shoshone people due to animosity between the tribes. The Crows actually gave the Arapaho the name by which we know them; it is their word for "tattooed." The Arapaho have no R sounds in their language. They called themselves He-nau-ana-nan-wan, "the chosen people."