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1958 Map of Boulder City NW

Name: 1958 Topographic Map of Boulder City NW
Creator: U.S. Geological Survey
Published: 1976
License: https://creativecommons.org/publicdomain/mark/1.0/

USGS Topo · Published 1976

About this map

Mining operations and high-desert transit corridors define this landscape northwest of the city during the late 1950s. The northern portion of the McCullough Range dominates the topography, featuring isolated extraction points like the Quo Vadis Mine and the Blue Quartz Mine. Strategic natural gaps in the terrain provide vital passage for infrastructure, most notably at Railroad Pass, where the Union Pacific railroad and major highways converge to enter the basin.

Evidence of earlier industry and settlement is visible at the Alunite (Site), located near the Alunite Mine. This resource-driven activity transitions into the broad, arid expanse of the Eldorado Valley to the south, terminated by the Dry Lake (Depression). The map also delineates the expanding Boulder City Municipal Area, showing the intersection of municipal planning with the rugged topography of the River Mountains.