The Eberhardt & Aurora Mining Company was an English firm established from London with the intent of mining silver from the White Pine district in Hamilton County, Nevada. The firm bought the interests of the Eberhardt mining group, formed by Captain Frank Drake and others, that had been exploiting the residual silver bearing ores in the old "Hidden Treasure” diggings on the main part of White Pine Mountain. By 1870 it was not yielding as much as it had been just five years earlier, when its owners had turned down an offer of $4 million for it. Most of the Eberhardt’s ore was found at or near the surface and the company was forced to the expense of running a tunnel ever deeper in hopes of finding another jackpot. The Aurora Mine was another nearly played out property. The newly formed Eberhardt & Aurora Mining Company hired Frank Drake as its superintendent and Thomas Phillpotts as its mining surveyor and claim scout. The company headquarters was located in Eberhardt, at the foot of Treasure Hill. Its financial and operating papers are in the William Miles Read Papers in the Bancroft Library. The silver ingots were produced under the Assayer F. H. Bousfield.