Bald Mountain Gold Mill, Nevada Gulch at head of False Bottom Creek, Lead, Lawrence County, SD
Significance: The technology used at Bald Mountain Gold Mill provides an excellent illustration of the development of the cyanide process of gold milling in the first half of the twentieth century. Historically this site was of great economic and social importance to the Black Hills region of South Dakota.
Unprocessed Field note material exists for this structure: N790
Survey number: HAER SD-2
Building/structure dates: 1907- 1959 Initial Construction
Building/structure dates: 1910 Subsequent Work
Building/structure dates: 1920 Subsequent Work
Building/structure dates: 1942 Subsequent Work