1991.064.526
Map
Hand-drawn map on a grid of the Champion Sillimanite, Inc. mine in Oreana, Nevada, with different colors used to represent geological features.
Dated June 30, 1945.
Digital Collection
Hand-drawn map on a grid of the Champion Sillimanite, Inc. mine in Oreana, Nevada, with different colors used to represent geological features.
Dated June 30, 1945.
