1. Structure contour map, upper cretaceus, southeastern Montana Author/Creator: Balster, Clifford A. Publication/Creation: [Butte] : [Montana College of Mineral Science and Technology], [1973?]] Resource Type: Map Access & Availability: Loading
2. Surficial geologic map of the Gates of the Arctic National Park and Preserve, Alaska Author/Creator: Hamilton, Thomas D. 1936- (Thomas Dudley) Publication/Creation: [Reston, Va.] : U.S. Dept. of the Interior, U.S. Geological Survey, 2011 Resource Type: Map Access & Availability: Loading