U.S. Dept. of the Interior, National Park Service, Rocky Mountain Region, Division of Cultural Resources, Selections Series,
Davis, Leslie B.
Aaberg, Stephen A.
Schmitt, James G.
United States. National Park Service. Rocky Mountain Regional Office.
The Obsidian Cliff Plateau, prehistoric lithic source, Yellowstone National Park, Wyoming
The Obsidian Cliff Plateau, prehistoric lithic source, Yellowstone National Park, Wyoming
The Obsidian Cliff Plateau, prehistoric lithic source, Yellowstone National Park, Wyoming