Calkins, F.C. and B. S. Butler; Geology and Ore Deposits of the Cottonwood-American Fork Area, Utah. USGS Prof. Paper 201, Washington DC, 1943. Quarto, pp. x, 152, 51 plates (18 folded in separate slip case as issued) and 8 figures.
The work is complete with all maps and plates present. Text and case in the original gray title wraps and gray card board case with black titles. The text is tight and clean, light wear to spine, Univ. Nebraska stamp on cover, map case with wear to spine and corners repaired with clear archival tape, maps clean and bright. Over all in very good condition.
The authors provide a well illustrated review of the various mines and the ore deposits and their mineralogy in this famous lead/silver, copper, gold and zinc mining district southwest of Park City, Utah. They also discuss the history of the district back to 1865, and describe the stratigraphy and structural geology of the region.