TY - GEN digital ID - 139450832 TI - Bedrock geologic map of the Port Wing, Solon Springs, and parts of the Duluthand Sandstone [sic] 30' x 60' quadrangles, Wisconsin AU - Nicholson, S.W. AU - Cannon, W.F. AU - Woodruff, L.G. AU - US Department of the Interior, Geological Survey National Center PY - 2004 SN - 060794093X PB - Reston, Virginia US Department of the Interior, Geological Survey National Center DB - UniCat UR - https://www.unicat.be/uniCat?func=search&query=sysid:139450832 AB - ER -