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1944 Map of Eldorado Springs

Name: 1944 Topographic Map of Eldorado Springs
Creator: U.S. Geological Survey
Published: 1944
License: https://creativecommons.org/publicdomain/mark/1.0/

USGS Topo · Published 1944

About this map

The Flatirons and the towering peaks of the Boulder Mountain range dominate this 1942 survey, where the Front Range meets the plains. The landscape is a network of steep gulches and prominent summits like Bear Peak and South Boulder Peak, which overlook the resort community of Eldorado Springs. This era shows a transition in land use, marked by the presence of Pine Grove Sch (abandoned) and the Copeland Mine, alongside established homesteads such as Kossler Ranch and Walker Ranch.

Infrastructure is vital to this topography, with the Denver and Salt Lake RR winding through the foothills near Crescent and the South Boulder Creek canyon. To the north, the southern edge of Boulder is visible, including the Green Mountain Cemetery and the City Reservoir. The map captures the interaction between early Colorado ranching, small-scale mining at Keystone, and the water management systems like McKay Ditch that served the lower Rocky Flats territory.