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1950 Map of Topock

Name: 1950 Topographic Map of Topock
Creator: U.S. Geological Survey
Published: 1981
License: https://creativecommons.org/publicdomain/mark/1.0/

USGS Topo · Published 1981

About this map

The Colorado River carves a critical corridor through this desert landscape at the midpoint of the twentieth century, serving as the boundary between San Bernardino Co, California, and Mohave Co, Arizona. This area is a hub of transcontinental transit, where the Atchison Topeka and Santa Fe railroad and the National Old Trails Road converge near the settlement of Topock. The river geography is defined by narrow passages and wide basins, including the northern reaches of Lake Havasu and distinctive landmarks like the Needles and Cathedral Rock.

Indigenous heritage is central to this map, which prominently features the Fort Mohave Indian Res and the Chemehuevi Indian Reservation. Resource extraction is evident in the surrounding heights of the Mohave Mountains, where several workings are noted, including the Gold Dome Mine and Yucca Mine. The transition from riverine floodplain to high desert is marked by the broad Sacramento Wash and the protected lands of the Havasu National Wildlife Refuge.