OF-12-06 Geologic Map of the Leadville South Quadrangle, Lake County, Colorado

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Citation: McCalpin, James P., Jonathan A. Funk, and David Mendel. “OF-12-06 Leadville South Quadrangle Geologic Map, Lake County, Colorado.” Geologic, 1:24,000. Open File Reports. Denver, CO: Colorado Geological Survey, 2012.

Description

The purpose of CGS Leadville South Quadrangle Geologic Map, Lake County, Colorado is to describe the geology, mineral and ground-water resource potential, and geologic hazards of this 7.5-minute quadrangle located south of Leadville in central Colorado.  Consulting geologists James P. McCalpin and Jonathan Funk, and field assistant David Mendel completed the field work on this project during the summer of 2008.  Dr. McCalpin and Mr. Funk, the principal mappers and authors, created this report using field maps, photographs, structural measurements, and field notes generated by all three investigators. Digital ZIP download. OF-12-06D

From the authors notes:
The Leadville South 7.5’ quadrangle includes the southern half of the city of Leadville, Colorado, the highest city in the United States (official elevation 10,152 ft). The quadrangle lies within the old USGS Leadville 30’ quadrangle (e.g., Capps, 1909; Tweto and Case, 1972), and the NE quarter of the USGS Mount Elbert 15’ quadrangle (e.g., Tweto and Reed, 1973). Parts of the quadrangle had been previously mapped at scales larger than this map (1:24,000) as part of various mining districts (Table 1), and several adjacent quadrangles have been recently mapped at 1:24,000 scale (Fig. 3). More detailed mapping of the Quaternary geology was performed by the US Bureau of Reclamation in the late 1970s as part of studies for Twin Lakes Reservoir (USBR, 1981; Nelson and Shroba, 1998).