Baca Float Number 3
This was the northern boundary of Baca Float Number 3, one of five 100,000-acre grants made to the Baca family, in exchange for land taken from them in New Mexico. An attempt was made to relocate this grant to include mines in the Santa Rita Mountains to the north, but in 1917 the grant was established here, and settlers on the land were evicted. Many moved north to present-day Tubac.
Courtesy hmdb.org