County mapping is carried out at the ISGS under a variety of programs. The programs exist for different purposes and require different levels of scientific review. Maps are published in specific Series based on the program under which they were created and the corresponding level of review.

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Displaying 61 - 70 of 86
Map Images Title Description Theme Series County Publication Date Authors
Shaded Relief Map of Bedrock Surface, Jo Daviess County Shaded Relief Map of Bedrock Surface, Jo Daviess County, Illinois

1:62,500 Jo Daviess County map; 42" x 29" single map sheet; includes map, legend and descriptive text.

 Shaded Relief Open File Series (OFS) Jo Daviess 2000 Christopher S. McGarry, Matthew H. Riggs
Shaded Relief Map of Tazewell County Shaded Relief Map of Tazewell County, Illinois

1:62,500 Tazewell County map; 40" x 36" single map sheet; includes map, legend, and inset map

 Shaded Relief Open File Series (OFS) Tazewell 2003 Patrick D. Johnstone, Christopher S. McGarry
Shaded Relief of Carroll County Shaded Relief of Carroll County, Illinois

1:62,500 Carroll County map; 37" x 27" single map sheet; includes map, legend, and descriptive text

 Shaded Relief Open File Series (OFS) Carroll 1997 Christopher S. McGarry
Shaded Relief of Lee County Shaded Relief of Lee County, Illinois

1:62,500 Lee County map; 47" x 30" single map sheet; includes map, legend, descriptive text and inset maps (2)

 Shaded Relief Open File Series (OFS) Lee 1999 Renee J. Nagy
Sinkhole Distribution and Associated Karst Features of Monroe County Sinkhole Distribution and Associated Karst Features of Monroe County, Illinois

One 31" x 35" map sheet; includes map, legends, and 2 figures

 Sinkhole Distribution Illinois County Geologic Map Series (ICGM) Monroe 2012 S.V. Panno, Donald E. Luman
Surface Slopes of Carroll County Surface Slopes of Carroll County, Illinois

1:62,500 Carroll County map; 37" x 27" single map sheet; includes map, legend, and descriptive text

 Surface Slopes Open File Series (OFS) Carroll 1997 Christopher S. McGarry
Surface Slopes of Tazewell County Surface Slopes of Tazewell County, Illinois

1:62,500 Tazewell County map; 40" x 36" single map sheet; includes map, legend, and inset map

 Surface Slopes Open File Series (OFS) Tazewell 2003 Patrick D. Johnstone
Surface Topography of Carroll County Surface Topography of Carroll County, Illinois

1:62,500 Carroll County map; 37" x 27" single map sheet; includes map, legend, descriptive text, and inset map

 Surface Topography Open File Series (OFS) Carroll 1997 Christopher S. McGarry
Surface Topography of Lee County Surface Topography of Lee County, Illinois

1:62,500 Lee County map; 47" x 30" single map sheet; includes map, legend, descriptive text and inset maps (2)

 Surface Topography Open File Series (OFS) Lee 1999 Renee J. Nagy
Surface Topography of McHenry County Surface Topography of McHenry County, Illinois Surface Topography Open File Series (OFS) McHenry 1995 Melisa M. McLean, Maureen D. Kelly, Christopher S. McGarry