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1970 Map of Climax

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

USGS Topo · Published 1973

About this map

Mining operations at Climax and along the Continental Divide define this 1970 landscape, where the extraction of molybdenum and gold shaped the high-altitude terrain. The map documents an industrial infrastructure of tunnels, portals, and tailings, specifically noting the Phillipson Portal and Storke Portal near Fremont Pass. The Colorado and Southern railroad tracks follow the headwaters of the East Fork Arkansas River, providing a vital transit link through the mountain passes.

Further south, the map reveals a dense concentration of smaller historical claims and workings, such as the Famous Mine and Fortune Mine near Little Evans Gulch. These sites, along with the Pennsylvania Tunnel and London Extension Mine, highlight the intensive subsurface exploration of the Mosquito Range. The presence of Mosquito Pass and American Flats illustrates the challenging geography that miners and transporters navigated during the region's late-twentieth-century industrial era.