TY - RPRT TI - Analyses of outcrops and B-horizon soil samples, Iron River 1° x 2° quadrangle, Michigan-Wisconsin AU - R.T. Hopkins AU - J. D. Hoffman AU - Henry V. Alminas PY - 1981 DO - 10.3133/ofr81779 UR - https://pubs.usgs.gov/publication/ofr81779 ID - ofr81779 ER -