Ratcliff Mine, 5' Contours for Mill, Campbell California Mining Co., Ballarat, Inyo Co., California
Entry/Object ID
2025.22.14
Description
Blueprint contour map with handwritten notes in yellow.
A letter from the Southwestern Engineering Company accompanies this map. It was sent to George W. Worthington of Trona from S. E. Stein of the company on 08/05/1936.
