Local Geology:

1:24000 Geologic map

Meuschke, Philbin, and Petrafeso, 1962, Aeromagnetic Map of the Deadwood Area, Black Hills, South Dakota, USGS)

Gravity map of the Lead-Deadwood area (Kleinkopf and Redden, 1976)

Magnetic map of the Lead-Deadwood area (Kleinkopf and Redden, 1976)