The geology of the Ward region, Boulder County, Colorado. P.G. Worcester. 74 pages. 2 plates. Digital PDF download. B-21D
Excerpted from the report introduction:
The area covered by this report lies north of the “Main Tungsten Area” of Boulder County and west of the “Sugarloaf District,” which have been described, respectively, by R. D. George in the first annual report of the Colorado Geological Survey, and in a thesis by R. D. Crawford.
The field mapping for this report was completed between 1906 and 1913, and included the first detailed topographic and geologic mapping of the area. This report is organized into six chapters: Chapter I. Introduction, Chapter II. Geography and topography, Chapters III-V. General Geology, and Chapter VI. Economic Geology. Of possible historical significance, Chapter VI discussed the ore deposits and mining industry, including the important mines in the Ward region and information on concentration and extraction of ores with a list of mills and production. The two plates presented a topographic map and a geologic map of the Ward and Sugarloaf regions.