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

mills gold mines gold mining milling metalworking lead sd bald gold mill bald mountain gold mill gulch nevada gulch head false bottom false bottom creek lead lawrence lawrence county south dakota american eagle mining company bald mountain mining company david eve historic american engineering record trojan mining company photo ultra high resolution high resolution industrial history mining industry library of congress

1969 - 1980

Library of Congress

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