1. Geologic maps of western and northern parts of Gallatin National Forest, south-central Montana Author/Creator: Geological Survey (U.S.) Publication/Creation: [Reston, Va.?] : U.S. Geological Survey, 1997 Resource Type: Map Access & Availability: Loading
2. Maps showing metallic mineral districts and mines in the Black Hills, South Dakota and Wyoming Author/Creator: Geological Survey (U.S.) Publication/Creation: Denver, CO : For sale by U.S. Geological Survey Information Services Resource Type: Map Access & Availability: Loading