Quadrangle Maps

Bethalto Surficial Geology 2005 Bethalto-SG map
Bethalto Bedrock Geology 2004 Bethalto-BG map
Big Rock Surficial Geology 2000 Big Rock Surficial EDMAP
Blackhawk Surficial Geology 2008 Blackhawk EDMAP
Bloomfield Geology 1991 Bloomfield-G map
Bloomington East Surficial Geology 2016
Bloomington West Surficial Geology 2015 Surficial Geologic Map of the 7.5 Minute Bloomington West Quadrangle in McLean County, IL
Blue Island Surficial Geology 2021 Surficial Geology of Blue Island Quadrangle, map thumbnail, sheet 1
Blue Island Surficial Geology 1939 Blue Island surficial geology map
Brownfield Bedrock Geology 2008 Brownfield BG map 1


Purchase this map online through Shop ISGS*, or contact the Sales and Information Office for more information.

*excludes EDMAP series and student maps