Click to enlarge 1991.064.527 Map Hand-drawn map of the Champion Sillimanite, Inc. mine in Oreana, Nevada. Date c. 1940 Collection Champion Spark Plug Co. Extent of Description 17" x 22" Search Terms Champion Spark Plug Co., Mines, Nevada Request Image Related Records Map 1991.064.573Archive Oreana Mine Ore Zones View Artifact