Data base map / by John M. Rongstad and Quinto J. Lotto. 1991
Bedrock geology / by John M. Rongstad and Paul A. Vogel. 1991
Bedrock topography / by John M. Rongstad and Jesse D. Wohlfeil. 1991
Depth to bedrock / by John M. Rongstad and Jesse D. Wohlfeil. 1991
Bedrock structure Jordan formation / by John M. Rongstad and Paul A. Vogel. 1991
Bedrock structure St. Peter formation / by John M. Rongstad and Paul A. Vogel. 1991
Bedrock structure Decorah formation / by John M. Rongstad and Paul A. Vogel
Cedar Valley-Maquoketa-Galena aquifer system / by John M. Rongstad. 1991
St. Peter-Prairie du Chien-Jordan aquifer system / by John M. Rongstad. 1991.
