THE EKALAKA LIGNITE FIELD, SOUTHEASTERN MONTANA; GEOLOGICAL SURVEY BULLETIN 751-F. Clyde Max Bauer.

THE EKALAKA LIGNITE FIELD, SOUTHEASTERN MONTANA; GEOLOGICAL SURVEY BULLETIN 751-F

Washington, DC: United States Geological Survey/USGS/Government Printing Office/GPO, 1924. Softcover. Item #38505

Pages 231 through 267 with maps and foldouts. All plates present including the folded map in the rear split pocket. Bound in original gray paper covers with lettering in black. Mild toning the covers. A very good copy.

Price: $25.00