Legend (bedrock_maps/1000k_wisconsin_bedrock)

Cretaceous Map Unit Points (0) Fault Lines (1) fault fault, projected fault, ball and bar on downthrown side Precambrian Iron-Formation Map Unit Lines (2) Map Unit Areas (3) Du Su W Om Os Oa Opc Cu Pbg Pko Pku Pkl Pkg Pwg Pws Pwu Pwr Pwq Pwa Pqz Prg Pgr Pdi Pgn Pmg Pms Pif Pvn Pvu PAgn Agr Avo Agn