Geologic Map of the Del Rio-Waterville Districts, Tennessee-North Carolina, compiled by Fred B. Keller, plate 2
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Manuscripts and Archives > Geologic Map of the Del Rio-Waterville Districts, Tennessee-North Carolina, compiled by Fred B. Keller, plate 2
Illustration in Frederick Brian Keller's 1980 Yale dissertation, "Late Precambrian Stratigraphy, Depositional History, and Structural Chronology of Part of the Tennessee Blue Ridge," Geology Department.