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1964 Map of Grays Well NE

Name: 1964 Topographic Map of Grays Well NE
Creator: U.S. Geological Survey
Published: 1979
License: https://creativecommons.org/publicdomain/mark/1.0/

USGS Topo · Published 1979

About this map

The United States Mexico international boundary defines this arid borderland where the shifting Sand Hills meet the engineered waterways of the Colorado River valley. The massive All American Canal cuts a straight path across the Imperial Sand Dunes Recreation Lands, highlighting the mid-century effort to move water through the desert. To the southeast, the Colorado River serves as the boundary between Baja California Norte and Arizona, weaving past the Cocopah Indian Reservation.

Transport and irrigation patterns are central to the landscape, with the Southern Pacific railroad running parallel to the river near Pilot Knob. The transition from the high Pilot Knob Mesa to the agricultural grid of the Valley is marked by local infrastructure such as the Pesch Canal and a network of numbered roads including 12th St and 13th Street. This survey documents a critical junction of international borders and resource management during the late 1970s.