The Empire Ranch developed and grew in the years before Arizona achieved statehood. In 1881 a Rand McNally Company map placed the Empire Ranch in Pima County. In 1880 the Southern Pacific Railroad arrived in Arizona.
1880 Rand McNally & Co.'s Arizona Map
Territory of Arizona Map 1883
Territory of Arizona Map 1883 Close Up
Map of the lands of the Empire Cattle Co. in Pima County, Arizona 1905
1906 Rand McNally & Co.'s Arizona map
Territory of Arizona Map used on 1890 Cattle Drive