The geologic map for the Efland quadrangle has been created as a general-purpose map that is applicable to land-related investigations in the earth, environmental and biological sciences. Includes stereonets and rose diagrams, one cross section and rock unit descriptions. By Philip J. Bradley, Norman K. Gay, and Randy Bechtel, 2006. Scale - 1:24,000. Approximate size is 34"x42".
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