c. 1950 - Chart - Division of Mines, State of Calif., Dept. of Nat. Resources, Bulletin 178, Plate 4

This document-chart shows the Generalized Columnar Sections for the areas shown on Map E-9-7-2 which covers the areas of: Prado Dam, Corona North, Black Star Canyon, and Corona South.  MEASUREMENTS: 16 5/8" X 9 9/16", CONDITION:  Very Good, COPIES: 2.
Abstract/Description: This document-chart shows the Generalized Columnar Sections for the areas shown on Map E-9-7-2 which covers the areas of: Prado Dam, Corona North, Black Star Canyon, and Corona South. MEASUREMENTS: 16 5/8" X 9 9/16", CONDITION: Very Good, COPIES: 2.
Subject(s): Mines, geology