During the 1870s, Lone Pine was an important supply town for several nearby mining communities, including Kearsarge, Cerro Gordo, Keeler, Swansea, and Darwin. The Cerro Gordo mine high in the Inyo Mountains was one of the most productive silver mines in California. The silver was carried in ore buckets on a strong cable to Keeler, and then transported four miles northwest to smelter ovens at Swansea. To supply the necessary building materials and fuel for these operations, a sawmill was constructed near Horseshoe Meadows by Colonel Sherman Stevens that produced wood for the smelters and the mines. The wood was moved by flume to the valley, where it was burned in adobe kilns to make charcoal, which was then transported by steamships across Owens Lake to the smelters at Swansea, about 12 miles south of Lone Pine.