USGS Mineral Resources: Illinois geologic map data

From the site: "A GIS database of geologic units and structural features in Illinois, with lithology, age, data structure, and format written and arranged just like the other states."

Data and Resources

From the site: "A GIS database of geologic...HTML
From the site: "A GIS database of geologic units and structural features in...
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Additional Info

Field	Value
Last Updated	August 8, 2019, 06:31 (EDT)
Created	August 8, 2019, 06:31 (EDT)
Is NETL associated	"\"No\""
Organization	"\"United States Geological Survey\""
Organization Acronym	"\"USGS\""
spatial	"\"{\"type\":\"MultiPolygon\",\"coordinates\":[[[[-87.01171875,42.98857645832184],[-87.01171875,36.58024660149866],[-91.669921875,36.58024660149866],[-91.669921875,42.98857645832184],[-87.01171875,42.98857645832184]]]]}\""