TY - RPRT TI - The geochemical landscape of northwestern Wisconsin and adjacent parts of northern Michigan and Minnesota (geochemical data files) AU - William F. Cannon AU - Laurel G. Woodruff PY - 2003 DO - 10.3133/ofr03259 UR - https://pubs.usgs.gov/publication/ofr03259 ID - ofr03259 ER -