Maps
The Illinois State Geological Survey creates and disseminates a variety of free and for-fee geologic maps and map-related data. Following is a list of links to maps, data, and mapping program information available from this and affiliated Web sites.
Maps Available for Purchase
ISGS paper and CD/DVD map products
USGS Topographic Maps (Index)
Downloadable Maps
By Scale
Quadrangle (1:24,000 scale)
County
Regional
State (IMAP)
By Series
Illinois Preliminary Geologic Map Series (IPGM)
Illinois County Geologic Map Series (ICGM)
Illinois Geological Quadrangle Series (IGQ)
Illinois Map Series (IMAP)
Open File Series (OFS)
By Theme
Bedrock
Coal
Hydrogeology
Surficial Geology and Features
By Program
Great Lakes Geologic Mapping Coalition
EDMAP
STATEMAP
Map-based Data
Digital (GIS) data for some geologic maps
Gamma-ray log database
Oil and Gas (ILOIL)
Historical aerial photographs
(ILHAP)
Illinois Natural Resources Geospatial Data Clearinghouse
Water-well data (ILWATER)
Well location (QuEStoR) maps and data extracts
Well log copying services (fee)
ISGS Mapping and Partnership Programs
ISGS Mapping Program
Great Lakes Geologic Mapping Coalition
Central U.S. Earthquake Consortium State Geologists
EDMAP
MIDCARB
STATEMAP
U.S. Geological Survey National Atlas Program Information
Miscellaneous Mapping Information
Three-Dimensional Mapping Workshops
Report Archive
Updated 1/5/2010 SLD