MAPS SHOWING DISTRIBUTION OF SELECTED ACCESSORY MINERALS IN THE MONTEZUMA STOCK, SUMMIT COUNTY, COLORADO; MISCELLANEOUS GEOLOGIC INVESTIGATIONS MAP I-608
Washington, DC: United States Geological Survey/USGS/Government Printing Office/GPO, 1971. Folded sheet. A large folded sheet with maps and information. A fine copy within a very good plus tan USGS sleeve with library call number. More