Title: The Rosebud coal field, Rosebud and Custer Counties, Montana
First published: 1936
Subjects: Coal, Coal mines and mining, Economic Geology, Formations (Geology), Geology, Geology, Economic, Geology, Stratigraphic, Sedimentation and deposition, Stratigraphic Geology
Places: Custer County, Fort Union Formation, Montana, Rosebud County
Time periods: Tertiary