
Gold mining operations and early Sierra Nevada foothill settlements define this late nineteenth-century landscape. Major hard-rock operations including the North Star Mines, Empire Mine, and Idaho Mine cluster near the bustling centers of Nevada City and Grass Valley, while industrial sites like the Sulphuret Works highlight the region's mineral processing history. The map records a dense network of stage houses and ranches that served as vital waypoints for miners and travelers, such as Summit House, Pike County House, and Maple Grove Ranch.
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9 maps found