Rare early Sutro Tunnel map, by Charles Hoffmann, who later assisted Whitney on early maps of Yosemite.
Adolph Sutro was an influential businessman in California and Nevada. He arrived in San Francisco in 1850. In 1859, he relocated to to Nevada and established a mill, which he called the Metallurgical Works, in East Dayton, Nevada. His most famous project was the Sutro Tunnel, which ventilated the mines of the Comstock Lode and allowed Miners to safely bring out ores.
This early map shows Dayton, American City and the Mineral Land granted by act of Congress to Sutro to establish the Tunnel, along with the Monte Christo Lode, Great Lowery Lode, and Comstock Lode. Extends to the Carson River in the South and shows Silver City and Gold Hill, and of course Virginia City.