Another great bit of information thanks to the Arizona Dude Ranch Association.
Tanque Verde Ranch - The rich and colorful history of this Arizona dude ranch begins with the Pima Indians. The "Tanque Verde" Ranch is named for the "green pool" and seasonal river that the Indians used as a source of water. They left behind numerous mortar stones and other artifacts as testimony to their passage.
In 1868 the land surrounding the tanks was purchased by Emilio Carrillo, a Mexican hacendado (the owner of a large estate) from Santa Cruz. After Carrillo's death in 1908, Jim Converse owned the ranch and began inviting eastern dudes to participate in everyday ranch activities. He further extended the business in both the production of cattle and the involvement of tourists until 1955.
In 1957, Brownie Cote purchased the property. He expanded on the existing operation and developed the property into a successful combination of classic western dude ranch and world class resort. In turn, he began a legacy of quality and unforgettable experiences that the Cote family continues to maintain still today.