Rowid_,SOURCE,SCALE,AUTHORS,YEAR,REFERENCE
,28,250000,"Harrison, J.E., Griggs, A.B., and Wells, J.D.",1986,"Geologic and structure maps of the Wallace 1o x 2o quadrangle, Montana and Idaho: U.S. Geological Survey Miscellaneous Investigations Series Map I-1509-A, 2 sheets, scale 1:250,000."
,29,250000,"Harrison, J.E., Griggs, A.B., Wells, J.D., Kelley, W.N., Derkey, P.D., and EROS Data Center",2000,"Geologic and structure maps of the Wallace 1o x 2o quadrangle, Montana and Idaho: A digital database: U.S. Geological Survey Miscellaneous Investigations Series Map I-1509-A, version 1.0, 21 p."