Gold Mountain Mine, also known as the Baldwin Mine or Lucky Baldwin Mine (originally Carters Quartz Hill), stands as one of the most significant gold operations in the Big Bear area of the San Bernardino Mountains. Located east of Big Bear Lake at coordinates approximately 34.3026°N, 116.8291°W, it overlooks Baldwin Lake and the former townsite of Doble. The mine represented the last major gold discovery in the region during the 1870s and highlighted the transition from placer to quartz mining.

Discovery and Early Development (1873-1875)
In 1873, brothers Barney and Charley Carter discovered the site while traveling to the Rose Mine for silver prospecting. Camping along the north shore of Baldwin Lake, Barney investigated a shiny quartz ledge on a hill, revealing rich gold ore. They claimed it as Carters Quartz Hill. This find came amid a broader context where placer gold in nearby streams had been noted since 1855, but harsh conditions limited early efforts. The Carters sold the claim to mining tycoon Elias J. “Lucky” Baldwin for $30,000, who invested an additional $250,000 to develop it. Baldwin, known from the Ophir Mine in Nevada, renamed it and employed up to 180 workers.
Chinese laborers played a key role, constructing roads from the mine to Cactus Flat and a five-mile flume with a 300-foot granite tunnel to supply water for processing. Their expertise in blasting and ditch-building was crucial, reflecting broader involvement of Chinese workers in quartz mining across the mountains. By 1876, a 40-stamp mill was operational, crushing ore for gold extraction via sluicing. The arrival of the Southern Pacific Railroad in Bear Valley boosted local prosperity, including the town of Belleville.
Operations and Challenges (1875-1895)
The mine ran for about eight months initially but faced a major setback in 1875 when Baldwin lost $2,500,000 in the Bank of California collapse, triggering a statewide economic downturn. Operations closed temporarily but reopened intermittently until 1895. Production figures are not precisely documented, but the site contributed to the region’s status as Southern California’s most productive gold district. In 1875, William F. Holcomb, whose 1860 discovery sparked the initial rush, returned to witness the decline of mining camps.

Later Years and Decline (1899-1940s)
In 1899, after resource depletion, J.R. DeLaMar partnered with Baldwin to build a second 40-stamp mill. The original mill operated until 1923, with hard-rock mining continuing until 1919. Various companies managed the site until the 1940s, but yields were disappointing overall. The mine’s concrete foundations and headframe remnants are still visible today.
Current Status and Legacy
Today, the dormant site lies within the San Bernardino National Forest, accessible mainly for hiking and part of the Gold Fever Off-Road Trail. It symbolizes the end of the major gold era in the mountains, with ongoing hobbyist mining in the broader area. The mine’s history underscores the economic volatility of 19th-century mining and the contributions of diverse laborers.
This report highlights how Gold Mountain Mine fits into the larger narrative of San Bernardino Mountains mining, which transformed the region from a frontier outpost to a key resource hub, leaving a lasting cultural and environmental legacy.
Overview of Mining in the San Bernardino Mountains
The San Bernardino Mountains, located in Southern California, have a storied mining history that dates back to the mid-19th century, driven primarily by gold discoveries amid the broader California Gold Rush era. This range, part of the larger Mojave Desert geophysical province, features rugged terrain with fault lines, basins, and arid conditions that influenced mining operations. Mining in the area encompassed a variety of commodities, including gold, silver, copper, lead, zinc, tungsten, borates, and limestone, with gold being the most widespread and economically significant. San Bernardino County, which includes these mountains, hosts over 3,000 documented mines, with approximately 1,585 listing gold as the primary commodity. The history reflects cycles of booms and busts tied to economic events, technological advancements, and global demands, such as those during World Wars I and II.
Early placer mining began in the 1840s and 1850s, with gold strikes in streams and valleys like Bear and Holcomb Valleys as early as 1849-1855, often initiated by prospectors following the California Gold Rush. The shift to hard-rock lode mining occurred as placer deposits depleted, supported by laws like the 1872 General Mining Act. Key districts included Holcomb Valley, Clark, Providence Mountains, and Calico, with operations involving shafts, adits, mills, and infrastructure like railroads and water systems. By 1902, the county had 301 hard-rock quartz mines, producing 45 mineral commodities. The Great Depression revived small-scale gold mining due to higher gold prices, while World War II focused on strategic minerals like tungsten and iron. Post-war activity declined, though sites like the Mountain Pass rare earth mine emerged in the 1950s. Today, remnants such as mine ruins, tailings, and historical landmarks persist, managed by entities like the Bureau of Land Management, facing threats from modern development and recreation.
The mountains are particularly noted for skarn gold deposits and high-purity placer gold, with historical recoveries in Holcomb Valley estimated at around 350,000 troy ounces (valued at $457,660,000 in 2013 prices). Remaining deposits may hold up to 700,000 troy ounces in unmined areas. Limestone mining continues as a major modern resource, with operators like Omya and Mitsubishi Cement extracting from the north slope.
Timeline of Key Mining Events in the San Bernardino Mountains
| Period | Key Events and Developments |
|---|---|
| 1840s-1850s | Initial placer gold discoveries in Bear and Holcomb Valleys (1849-1855); Mexican miners extract significant gold from placers in Bear Valley. |
| 1860s | Major gold rush sparked by William F. Holcomb’s discovery in Holcomb Valley (1860); boomtowns like Belleville emerge with populations up to 1,500; largest gold strike in Southern California. |
| 1870s-1880s | Shift to quartz mining; Gold Mountain Mine discovered (1873); stamp mills built; economic downturns like the 1875 Bank of California collapse affect operations; gold deposits largely exhausted by 1880s. |
| 1890s-1910s | Intermittent revivals with new technologies like cyanidation; hard-rock mining at Gold Mountain continues until 1919; borate and tungsten discoveries; steady activity until World War I. |
| 1920s-1940s | Decline due to low prices; Depression-era reworking of tailings; WWII focus on iron and tungsten; sporadic operations. |
| 1950s-Present | Rare earth mining at Mountain Pass; limestone extraction; hobbyist claims and historical preservation; over 2,000 active claims in Holcomb Valley. |
Mine Summary
| Name | Gold Mountain Mine |
| Also known as | Lucky Baldwin Mine, Carters Quartz Hill |
| Location | San Bernardino County, California |
| Latitude, Longitude | 34.3026, -116.8291 |
| Gold Fever Off Road Trail Marker No. | 12 |



