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Keystone Quadrangle, Keith County, Nebraska, Robert F. Diffendal Jr.
Keystone Quadrangle, Keith County, Nebraska, Robert F. Diffendal Jr.
Robert F. Diffendal, Jr., Publications
7.5' topgraphic quadrangle showing exposures of bedrock formations and other geologic information.
41° 07'30" to 41° 15'
101° 30' to 101° 37'30"
Scale 1:24,000
Completed July 16, 1976
High resolution .tif file (130 MB) attached below as supplemental file