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Bedrock Geology of Andalusia Quadrangle, Rock Island County, Illinois
Bedrock Geology of Galena Quadrangle, Jo Daviess County, Illinois
Surficial Geology of Dyer Quadrangle, Cook and Will Counties, Illinois and Lake County, Indiana
Surficial Geology of Russellville Quadrangle, Crawford and Lawrence Counties, Illinois and Knox County, Indiana
Surficial Geology of Fisher Quadrangle, Champaign County, Illinois
Bedrock Topography of St. Clair County, Illinois
Bedrock Topography of Madison County, Illinois
Bedrock Geology of Port Byron Quadrangle, Rock Island and Henry Counties, Illinois
Bedrock Geology of Green Rock Quadrangle, Rock Island and Henry Counties, Illinois
Geology of Pulaski County, Illinois
Geology of Massac County, Illinois
Geology of Alexander County, Illinois
American Association of Petroleum Geologists Awards for Three ISGS Scientists
Underground mapping project offers new info, and a few surprises, about Chicagoland's deep past
Illinois Basin – Decatur Project earns top honors from Environment + Energy Leader magazine
Groundwater experts help industries and nature preserves thrive
Falling lake levels reveal beach erosion issues
OFS2021-1
C606
C607
C608
Digging into soil data helps inform green infrastructure design
Data from landmark Illinois Basin carbon storage project are now available
Marble is luxurious—but is it sustainable?
Spot Elevations
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