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1970 Map of Alma

Name: 1970 Topographic Map of Alma
Creator: U.S. Geological Survey
Published: 1973
License: https://creativecommons.org/publicdomain/mark/1.0/

USGS Topo · Published 1973

About this map

The high-altitude mining landscape of Alma and the Middle Fork South Platte River valley is documented here just as the district moved into a post-war era of water management and recreation. The map records the remnants of the region's silver and gold mining heritage, including the Magnolia Mill and famous lodes like the Dolly Varden Mine and Buckskin Joe Mine tucked into the steep slopes of Mount Lincoln and Mount Bross.

Evidence of shifting industry is visible in the construction of the Montgomery Reservoir and its associated Aqueduct, which repurposed earlier mining infrastructure. For the historian, the map preserves the locations of several former settlements, including Quartzville (Site) and Dudley (Site), as well as the Old Railroad Grade and the Buckskin Cem, offering a window into the population centers that once thrived during the Colorado Silver Boom.