Illinois Geological Quadrangle (IGQ) Expanded Digital Data Products
Access information about IGQ Expanded Digital Data Products; these data are available for purchase. Images offered via the links below are not cartographic products, they merely portray the general nature of the data.
Contact the ISGS Information Office for pricing information and availability of any of the IGQ Expanded Digital Data Products from the Illinois State Geological Survey.
Alton Surficial Geology
(17Mb *) Order ID: dp00001
Surficial geological units of the 7.5-minute Alton Quadrangle in Madison County, Illinois. Vector spatial data layers in ArcInfo and ArcView data formats for surficial geologic units and contacts, loess thickness contours, cross-section line locations, and data points for stratigraphic test holes, outcrops, ISGS field notes, water wells and engineering borings.
JPEG images of information from the final published map including all of the explanatory text, reference text, materials descriptions, lithostratigraphic units and interpretations, three photographs, two cross-sections, and two figures depicting clay and illite contents in the Glasford Formation.
ArcView project file (.apr) and associated legend files (.avl).
Word processing document containing the map author's detailed notes regarding data points.
Elburn Surficial Geology
Order ID: dp00002
Surficial geological units of the 7.5-minute Elburn Quadrangle in Kane County, Illinois. Vector spatial data layers in ArcInfo and ArcView data formats for surficial geologic units and contacts, cross-section line locations, water bodies and data points for stratigraphic test holes, outcrops, ISGS field notes, water wells, and engineering borings.
JPEG images of information from the final published map including all of the explanatory text, reference text, materials descriptions, lithostratigraphic units and interpretations, three cross-sections, and two figures depicting moraines and bedrock topography.
Word processing document containing the map author's detailed notes regarding data points.
Elsah Surficial Geology
Order ID: dp00003
Surficial geological units of the 7.5-minute Elsah Quadrangle in Jersey and Madison Counties, Illinois. Vector spatial data layers in ArcInfo and ArcView data formats for surficial geologic units and contacts, cross-section line locations, and data points for stratigraphic test holes, outcrops and water wells.
JPEG images of information from the final published map including all of the explanatory text, reference text, materials descriptions, lithostratigraphic units and interpretations, three cross-sections, and two figures depicting moraines and bedrock topography.
Word processing document containing the map author's detailed notes regarding data points.
Geneva Surficial Geology
Order ID: dp00011
Surficial geological units of the 7.5-minute Geneva Quadrangle in Kane County, Illinois. Vector spatial data layers in ArcInfo and ArcView file formats for surficial geologic units and contacts, cross-section line locations, and data point locations for outcrops, water wells, engineering borings, ISGS borings and IDOT borings.
JPEG images of information from the final published map including all of the explanatory text, reference text, materials descriptions, lithostratigraphic units and interpretations, three cross-sections, one figure of the regional overview, and one figure depicting a block model of the study area. Word processing document containing the map author's detailed notes regarding data points.
Grafton Surficial Geology
Order ID: dp00006
Surficial geological units of the 7.5-minute Grafton Quadrangle in Jersey and Calhoun Counties, Illinois. Vector spatial data layers in ArcInfo and ArcView data formats for surficial geologic units and contacts, cross-section line locations and data points for stratigraphic test cores, outcrops, water wells and engineering borings.
JPEG images of information from the final published map including all of the explanatory text, reference text, materials descriptions, lithostratigraphic units and interpretations, two cross-sections, and four photographs of the study area. Word processing document containing the map author's detailed notes regarding data points.
Villa Grove Aquifer Sensitivity
Order ID: dp00008
Aquifer sensitivity to contamination in the 7.5-minute Villa Grove Quadrangle in Douglas County, Illinois. Vector spatial data layers in ArcInfo and ArcView data formats for aquifer sensitivity units and sensitivity class boundaries.
JPEG images of information from the final published map including all of the explanatory text, reference text, materials descriptions, and six thematic inset maps of the study area.
Villa Grove Bedrock Geology
Order ID: dp00005
Bedrock geological units of the 7.5-minute Villa Grove Quadrangle in Douglas County, Illinois. Vector spatial data layers in ArcInfo and ArcView data formats for bedrock geologic units, contacts and data points.
JPEG images of information from the final published map including all of the explanatory text, reference text, geological column, and five figures depicting 3-D block diagrams of bedrock geology, structural contours, cross-sections, topography, and photographs of the study area.
Villa Grove Bedrock Topography
Order ID: dp00009
Bedrock topography of the 7.5-minute Villa Grove Quadrangle in Douglas County, Illinois. Vector spatial data layers in ArcInfo and ArcView data formats for bedrock topography polygons and contours, and data points for stratigraphic test cores, water wells, petroleum borings and coal borings.
JPEG images of information from the final published map including all of the explanatory text, reference text, three figures, and two photos of the study area.
Villa Grove Drift Thickness
Order ID: dp00010
Thickness of Quaternary deposits in the 7.5-minute Villa Grove Quadrangle in Douglas County, Illinois. Vector spatial data layers in ArcInfo and ArcView data formats for drift thickness polygons and contours.
JPEG images of information from the final published map including all of the explanatory text, reference text, and six figures.
Villa Grove Surficial Geology
Order ID: dp00004
Surficial geological units of the 7.5-minute Villa Grove Quadrangle in Douglas County, Illinois. Vector spatial data layers in ArcInfo and ArcView data formats for surficial geologic units and contacts, indications of morainal units and units overlain by loess deposits and data points for test borings (shallow and deep) and engineering borings.
JPEG images of information from the final published map including all of the explanatory text, reference text, materials descriptions, lithostratigraphic units and interpretations, and eight figures depicting moraines, cross-sections, and photographs of the study area.