The Potosi Mine  is thought to be the site of the oldest lode mine in Nevada. Its lead deposits were discovered in 1847 but it was not until 1856 that Mormon miners from their colony of Las Vegas Springs began a lead mine there. Operations ceased in 1857 after 9,000 lbs of lead were extracted due to difficulties in smelting the ore.
Nothing further was done with the mine until 1861. That year the Colorado Mining Company, began to mine silver in the Potosi Mine. They first set up a large smelter at Potosi Spring  and established Potosi as its mining camp. Potosi had a population of 100 until mining ceased there in 1863.
The site of Potosi appears barren of ruins.
- U.S. Geological Survey Geographic Names Information System: Potosi (historical)
- U.S. Geological Survey Geographic Names Information System: Potosi Mine
- Nevada Historical Marker #102, Goodsprings (Mining District 1856-1857)
- U.S. Geological Survey Geographic Names Information System: Potosi Spring
- Nevada Historical Marker #115, Potosi
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