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1942 Map of Nederland

Name: 1942 Topographic Map of Nederland
Creator: U.S. Geological Survey
Published: 1969
License: https://creativecommons.org/publicdomain/mark/1.0/

USGS Topo · Published 1969

About this map

The high-country mining district of Boulder and Gilpin Counties is documented in this 1942 survey, revealing a landscape defined by the hardrock extraction era. Nederland serves as the central hub, situated near the western edge of Barker Reservoir, while the surrounding mountains are peppered with industrial sites like the Pandora Mine, Bluebird Mine, and Quay Mine. The Denver and Salt Lake railroad provides the primary industrial artery, winding through the southern portion of the sheet near Tolland and Rollinsville.

Settlements like Eldora and the high-altitude Caribou sit among landmarks like Eldorado Mountain and Chittenden Mountain. The presence of the Zarlengo Saw Mill and Mount Monarch Mill illustrates the timber and ore processing infrastructure necessary for mountain operations. Water management is already prominent, with the Los Lagos Reservoirs and several alpine lakes such as Lake Eldora and Lost Lake dotting the drainages of Middle Boulder Creek.