TY - BOOK AU - Zen,E-An ED - United States TI - Bedrock geology of the Vipond Park 15-minute, Stine Mountain 7-1/2-minute, and Maurice Mountain 7-1/2-minute quadrangles, Pioneer Mountains, Beaverhead County, Montana U1 - 557.8669 19th ed. PY - 1988///]. CY - [Washington]: PB - [United States Government Printing Office], KW - Geology KW - Montana KW - Pioneer Mountains N1 - Conduct map: map showing bedrock geology of the vipond park, stine mountain, and maurice mountain quadrangles, pioneer mountains, beaverhead county, Montana; Conduct diagr.: cross sections interpreting the structural relations of geologic map units in the vipond park, stine mountain, and maurice mountain quadrangles, pioneer mountains, beaverhead county, Montana; Includes bibliographical references (p. 46-49) N2 - A description of the stratigraphy, structure, and igneous rocks of a three-quadrangle area at the north end of the Pioneer mountains ER -