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1957 Map of Boulder

Name: 1957 Topographic Map of Boulder
Creator: U.S. Geological Survey
Published: 1969
License: https://creativecommons.org/publicdomain/mark/1.0/

USGS Topo · Published 1969

About this map

Boulder serves as the focal point for this 1957 survey, showing the city's residential extent and infrastructure before decades of modern expansion. The landscape is defined by the steep canyons and ridges of the Roosevelt National Forest, where numerous mining settlements and small communities like Jamestown, Salina, and Wallstreet are connected by winding mountain roads. Water management is a critical feature, with the Silver Lake Ditch and the Aqueduct system cutting across the topography to support the valley below.

Genealogists and local historians can trace legacy properties such as Gold Lake Ranch and Trojan Ranch, or locate the Gold Hill Cemetery perched high above the canyons. The presence of the Bunce School and isolated sites like Gresham point to the dispersed rural education and early settlement patterns of the Front Range. From the northern edge at Lyons to the southern peaks of Sugarloaf Mountain, the map documents a transition from industrial mining roots toward the modern mountain residential era.