Arthur C. Banet Jr. 1979 Four major lignite beds, all in the Fort Union Formation (Paleocene), occur in the West Glendive area, Dawson County, Montana. The Newton Ranch and Poverty Flats beds are in the Lebo Member and the Peuse and Kolberg Ranch beds are in the Tongue River Member. Correlation of the lignite beds across the area shows that the Peuse bed is the thickest and most extensive. Field mapping and drill-hole data indicate that folding and faulting are more common than previously reported. application/pdf 10.3133/ofr79275 en Preliminary geologic investigation of the West Glendive lignite deposits, Dawson County, Montana reports