- Physical Desc.:
1 map : col. ; 44 x 79 cm., on sheet 104 x 104 cm., folded in envelope 30 x 24 cm.
Geologic map of Precambrian rocks of Iron Mountain and Escanaba 1 ?x 2 ?quadrangles, northeastern Wisconsin and northwestern Michigan / Department of the Interior, U.S. Geological Survey ; compiled by P.K. Sims.