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Radioactive Deposits on the Haputa Ranch, Custer County, Colorado

Description: From abstract: An area 2,200 feet long and 400 to 1,300 feet wide within the Haputa ranch, Custer County, Colo., has been mapped at a scale 1:1,200. The rocks in this area consist of quartz-hornblende schist, granite gneiss, hornblende-andesine gneiss, gabbro and peridotite, microcline granite, and pegmatite, of pre-Cambrian age, and lamprophyre dikes of Tertiary age.
Date: November 1951
Creator: Dellwig, Louis F. & Gott, Garland B.