Soft cover. Zustand: Very Good. Softcover volume accompanied by 12 unbound plates. Saddle-stapled binding is strong. Pages are clean and unmarked. Illustrations, diagrams and tables throughout. All plates are clean and unmarked. Maps of various features such as "Representative Geologic Column and Associated Natural Gamma Log API Well #21575," Geologic Cross Section A-A," "Total Salt Thickness Map Unit D, Syracuse Formation," and others.