1964 Map of Grays Well NE

About this map

The Colorado River and the international border between the United States and Mexico anchor this arid landscape in the mid-1960s. The region is defined by the massive engineering of the All American Canal, which cuts through the Sand Hills to bring water to the desert. To the east, the Pilot Knob Mesa rises toward the landmark peak of Pilot Knob, while the southern portion of the sheet reveals the agricultural transition of the Yuma Valley. This area includes the northern extent of the Cocopah Indian Reservation, showing the interaction between tribal lands and the developing infrastructure of the Southern Pacific railroad and smaller irrigation works like the Pesch Canal.