Potosi (also known as Potosi Camp or Crystal City in the 1870s) is a historic mining ghost town and mining district in Clark County, southern Nevada, located in the Spring Mountains approximately 30–35 miles southwest of Las Vegas. The site, at an elevation of about 5,705 feet, centers on Potosi Mountain (around 8,504 feet) and Potosi Spring. It is significant as the location of Nevada’s first lode mine (the Potosi Mine), with operations dating to the mid-19th century. The Potosi Mining District is listed on the National Register of Historic Places.
The name “Potosi” derives from the famous silver-mining mountain in Bolivia (Cerro Potosí), passed indirectly through Potosi, Wisconsin, the hometown of an early mine manager. The area’s history spans possible pre-contact Native American use, Spanish exploration theories, Mormon settlement efforts, multiple mining booms and busts, and contributions to national needs during World War I. Today, it is largely abandoned but retains interpretive value and attracts hikers and history enthusiasts.
Early History and Pre-Mormon Activity
Indigenous peoples, including the Chemehuevi, had connections to the area. A giant cave on Potosi Mountain was reportedly used for vision quests by Chemehuevi shamans in the mid-19th century. Paiute guides later directed settlers to mineral deposits.
Speculative accounts suggest Spanish missionaries or Mexican prospectors may have explored or worked silver mines in the region as early as the 1770s or 1830s, possibly linked to the Old Spanish Trail (blazed in 1829–1830). However, these lack strong documentation, and modern recorded history begins in the 1850s. Artifacts like old coins or religious items have been anecdotally reported but are not definitively tied to large-scale operations.
Mormon Era and the First Lode Mine (1850s)
The modern history of Potosi is tied to the Mormon (Latter-day Saints) mission at Las Vegas Springs, established in 1855 as part of efforts for economic self-sufficiency in what was then considered part of southern Utah (later New Mexico/Arizona Territory before becoming Nevada). Lead was critically needed for bullets and other uses.
In 1856, a Paiute guide informed Mormon settlers of a lead deposit on the western slope of the Spring Mountains. Nathaniel V. Jones, an experienced miner dispatched from Salt Lake City, inspected and developed the site, naming it Potosi. A small camp with log cabins was built in a ravine below the mine, near a spring. Ore was initially smelted locally with limited success due to fuel and water issues, then hauled to Las Vegas for processing in a smelter inside the stockade (considered the first smelter west of the Missouri River operating in Nevada).
About 9,000 pounds of lead were recovered, but high zinc content complicated smelting. Operations ceased in early 1857 (or late 1856 per some accounts) when Brigham Young recalled the colonists amid tensions with the U.S. government. Potosi became Nevada’s first abandoned mine and ghost town.
Later 19th-Century Revivals (1860s–1870s)
Mining resumed sporadically. In 1861, the Colorado Mining Company (California interests) reopened the mine for silver, building a smelter at Potosi Spring and a camp with rock cabins housing up to 100 miners. Activity lasted until around 1863.
In the 1870s, the Silver State Mining Company worked the mine (sometimes called the Comet) and established Crystal City at Potosi Spring with stone buildings. This phase lasted roughly three years. Prospectors continued small-scale work intermittently for decades.
20th-Century Zinc Boom and Industrial Operations (1900s–1920s)
The arrival of the San Pedro, Los Angeles and Salt Lake Railroad (later Union Pacific) in 1905 enabled economic shipping of complex ores. New assays revealed significant zinc alongside lead and silver, sparking renewed interest.
Operations expanded in the 1910s. The Empire Zinc Company (New Jersey, with Denver offices) took over around 1913, building a modern camp with uniform housing, an electrical plant, a calciner, and an aerial tramway (constructed 1913) to transport ore down the steep hillside. Ore was trucked to railheads like Arden. A Yellow Pine railroad spur aided logistics.
During World War I, Potosi was designated a priority defense project for zinc, lead, and silver production. The mine yielded substantially for the war effort. Population grew temporarily; local newspapers noted births in the camp in 1918. Post-armistice, operations scaled back. The Empire Zinc Company dismantled much of the camp by 1919.
Subsequent lessees, including A.J. and A.R. Robbins and the International Smelting Company (mid-1920s), extracted more zinc (e.g., 31,000 tons in 1925), but high costs led to final abandonment around 1928–1930. Total estimated production reached about $4.5 million in lead, silver, and zinc. Other minerals included gold, copper, and traces of others.
Significance and Legacy
- Mining Milestone: Nevada’s first lode mine, predating major strikes like the Comstock Lode in importance for early regional development.
- Mormon Influence: Exemplifies early LDS efforts in the American West for self-sufficiency and settlement.
- Economic and Military Role: Contributed to national metal supplies, especially in wartime.
- Cultural/Historic Sites: Nevada State Historical Markers (e.g., No. 115) commemorate the site. The Potosi Mining District is on the National Register of Historic Places. Ruins are minimal today, but the mine itself (multi-level) and tram remnants remain points of interest for explorers.
The site is near the Old Spanish Trail and accessible via dirt roads (high-clearance vehicles recommended). It offers hiking opportunities, including to Potosi Mountain summits and cliffs.
Conclusion
Potosi embodies the boom-and-bust cycle of Nevada mining towns—driven by mineral riches, technological advances (railroads, trams), and national demands, yet challenged by remoteness, ore complexities, and economics. From a short-lived Mormon outpost to a contributor in World War I, its legacy as Nevada’s pioneering lode mine endures in historical markers, archives, and the rugged landscape of the Spring Mountains. While retired and deserted, it remains a tangible link to the state’s frontier past.
Sources: Compiled from Nevada SHPO historical markers, Travel Nevada Magazine archives, and related historical accounts. For on-site visits, consult current land access and safety information, as old mines pose hazards.
Potosi is a designated at Nevada State Historic Marker no. 115.
Town Summary
| Name | Potosi |
| Location | Clark County, Nevada |
| GNIS | 849366 |
| Latitude, Longitude | 35.9708, -115.5408 |
| Elevation | 5705 |
| Population | 100 |
