-
by Robertson, Frank C. (Frank Chester), 1890-1969
Published 1994 -
by Peterson, Richard H.
Published 1991 -
by Mueller, Marge
Published 1997 -
by Stoll, William T. (William Tecumseh), 1859-1931
Published 1991 -
by Vogt, Andrea, 1971-
Published 2003 -
Lewis and Clark's mountain wildsa site guide to the plants and animals they encountered in the BitterrootsBookby Ritter, Sharon A.
Published 2002 -
by Walker, Deward E.
Published 1991 -
by Keith, Thomas B.
Published 1976