Reconnaissance erosion survey of the State of California

"California erosion survey of 1934 by E.J. Carpenter in charge ... Acknowledgement is made to College of Agriculture, University of California, for assistance.|~|U.S. Dept. of Agriculture, Soil Conservation Service ; field survey under direction of G.L. Fuller ; map compiled by W.F. Beamon, chief draftsman.|~|"Base map by U.S. Geological Survey, 1929."

United States. Soil Conservation Service.

1934

The Service

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