TY - BOOK AU - Hobbs,S.W. TI - The Lawson Creek Formation of Middle Proterozoic age in east-central Idaho U1 - 551.71509796 PY - 1980/// CY - Washington PB - U.S. Government Printing Office, : for sale by Supt. of Docs KW - Geology, Stratigraphic KW - Proterozoic KW - Geology KW - Idaho KW - Custer County KW - Lemhi County KW - Butte County N1 - Bibliography: p. 12 ER -