Later the area was occupied by Mescalero and Lipan Apaches and Jumano people. Also using the area were Comanche, Kiowa and Tiguas. Spanish and Mexican travelers were rare visitors to the area. The Kiowa called the area the "Tso-doi-gyata-de-dee", meaning "rock cave where they were surrounded." In 1837, the Kiowa signed a treaty with the United States, however, shortly after Mexican soldiers forced them into a six-day siege in Hueco Tanks, during which most of them died. The earliest known modern graffiti dates back to the 1840s.