Black Peak, in Del Norte Mountains from northeast. Brewster County, Texas. 1930.
Dates
Date Taken
1930
Summary
Black Peak, in Del Norte Mountains from northeast, the peak is a mass of limestone of the Gaptank formation thrust against the limestones of the Comanche series, which crop out in the background. Brewster County, Texas. June 1930. Plate 13-A, with graphics, U.S.Geological Survey Professional paper 187. 1937.
Summary
Black Peak, in Del Norte Mountains from northeast, the peak is a mass of limestone of the Gaptank formation thrust against the limestones of the Comanche series, which crop out in the background. Brewster County, Texas. June 1930. Plate 13-A, with graphics, U.S.Geological Survey Professional paper 187. 1937.
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