Verification and Characterization of a Fracture Network within the Maquoketa Shale Confining Unit, Southeastern Wisconsin Open-file report; contains unpublished data that has not yet been peer-reviewed. Bedrock Geology Groundwater Data and Resources WOFR2001-04 Verification and Characterization of a Fracture Network Within the Maquoketa Shale Confining Unit, Southeastern Wisconsin [appendix C] Eaton, T.T.; Bradbury, K.R.; Wang, H.F.; 2001 Report: 35 p. Download Related Collections Open-File Report View Open-File Report