Relief shown by contours and spot heights"Geology based on field work by J. Nelson, 2005-2006.""Digital cartography by J. Domier, J. Palmer, and M. Widener, Illinois State Geological Survey."Includes location map with quadrangle index diagramData sheet includes text, 2 colored stratigraphic columns, and 1 colored cross sectionIncludes bibliographical referencesFunded in part by the USGS National Cooperative Geologic Mapping Progra
Computer generated mapRelief shown by spot heights and contoursIncludes text, col. ill., cross secti...
"Geology based on field work by F. Brett Denny and Russel[l] J. Jacobson, 2001-2002."Relief shown by...
Relief shown by contours and spot heights"Geology based on field work by J. Nelson, 2005-2006.""Digi...
Relief shown by contours and spot heights"Geology based on data analysis by W.J. Nelson, 2006.""Digi...
Relief shown by contours and spot heights"Geology based on field work and data analysis by W.J. Nels...
Relief shown by contours and spot heights"Geology based on field work and data analysis by W.J. Nels...
Relief shown by contours and spot heights"Geology based on field work and data analysis by W.J. Nels...
Relief shown by contours and spot heights"Geology based on field work and well-log analysis by W.J. ...
Relief shown by contours and spot heights"Geology based on field work and data analysis by W.J. Nels...
Relief shown by contours and spot heights"Geology based on field work by J. Devera, 2004-2005.""Digi...
Relief shown by contours and spot heights"Geology based on field work and data analysis by W.J. Nels...
Relief shown by contours and spot heights"Geology based on field work and data analysis by W.J. Nels...
Relief shown by contours and spot heights"Based on field work and data compilation by S. Panno, B. D...
Relief shown by contours and spot heights"Geology based on data analysis by W. John Nelson, 2004-200...
Relief shown by contours and spot heights"Geology based on field work by F.B. Denny, 2000-2001.""Dig...
Computer generated mapRelief shown by spot heights and contoursIncludes text, col. ill., cross secti...
"Geology based on field work by F. Brett Denny and Russel[l] J. Jacobson, 2001-2002."Relief shown by...
Relief shown by contours and spot heights"Geology based on field work by J. Nelson, 2005-2006.""Digi...
Relief shown by contours and spot heights"Geology based on data analysis by W.J. Nelson, 2006.""Digi...
Relief shown by contours and spot heights"Geology based on field work and data analysis by W.J. Nels...
Relief shown by contours and spot heights"Geology based on field work and data analysis by W.J. Nels...
Relief shown by contours and spot heights"Geology based on field work and data analysis by W.J. Nels...
Relief shown by contours and spot heights"Geology based on field work and well-log analysis by W.J. ...
Relief shown by contours and spot heights"Geology based on field work and data analysis by W.J. Nels...
Relief shown by contours and spot heights"Geology based on field work by J. Devera, 2004-2005.""Digi...
Relief shown by contours and spot heights"Geology based on field work and data analysis by W.J. Nels...
Relief shown by contours and spot heights"Geology based on field work and data analysis by W.J. Nels...
Relief shown by contours and spot heights"Based on field work and data compilation by S. Panno, B. D...
Relief shown by contours and spot heights"Geology based on data analysis by W. John Nelson, 2004-200...
Relief shown by contours and spot heights"Geology based on field work by F.B. Denny, 2000-2001.""Dig...
Computer generated mapRelief shown by spot heights and contoursIncludes text, col. ill., cross secti...
"Geology based on field work by F. Brett Denny and Russel[l] J. Jacobson, 2001-2002."Relief shown by...
Relief shown by contours and spot heights"Geology based on field work by J. Nelson, 2005-2006.""Digi...