1. Geothermal map, upper part of madison group, Montana Author/Creator: Balster, Clifford A. Publication/Creation: [Butte] : [Montana Bureau of Mines and Geology], [197-] Resource Type: Map Access & Availability: Loading
2. Structure contour map, upper cretaceus, southeastern Montana Author/Creator: Balster, Clifford A. Publication/Creation: [Butte] : [Montana College of Mineral Science and Technology], [1973?]] Resource Type: Map Access & Availability: Loading