1. Anticlines in a part of the Musselshell Valley, Musselshell, Meagher, and Sweetgrass Counties, Montana, Author/Creator: Bowen, C. F. 1871-1953. (Charles F.) Publication/Creation: Washington : Govt. Print. Off, 1918 Resource Type: Book Is Part Of: U.S. Geological Survey bulletin, no. 690-691. Access & Availability: Loading
2. The Ashland coal field, Rosebud, Powder River, and Custer counties, Montana Author/Creator: Bass, N. Wood 1893- (Nathan Wood) Publication/Creation: Washington : U.S. G.P.O., 1932 Resource Type: Book Is Part Of: U.S. Geological Survey bulletin, no. 829-832. Access & Availability: Loading