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This is an Arc/Info coverage showing the general elevation of the top of the Herrin (No. 6) coal in Illinois. These 100-foot isolines were contoured by Earthvision software using more than 22,000 data points. The data was not contoured using fault lines for control and no manual adjustments were made to the contours to reflect the presence of known faults. Limited data were available in the north central and central portions of the state. This data set is intended for use at a scale of 1:750,000.
Categories: Web Site; Tags: 17005 = Bond, 17011 = Bureau, 17017 = Cass, 17019 = Champaign, 17021 = Christian, All tags...
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Outlines of areas mined for the Springfield coal in Illinois as of January 1, 1996. This information was extracted from detailed coal mine data stored in the ISGS Coal Section library database. Lines delineate the approximate outer boundary of individual mines (if known) or general mined areas. Interior mine boundaries such as pillars or small blocks of unmined coal are commonly not depicted. Outlines have been compiled from a variety of sources. Outlines of areas mined before 1987 are commonly from source maps at scales of 1:62,500 or smaller. Outlines of areas mined since 1987 are commonly digitized at scales ranging from 1:4800 to 1:12,000. Mines whose extent is not known or which only mined a few acres are not...
Categories: Web Site; Tags: 17005 = Bond, 17011 = Bureau, 17017 = Cass, 17019 = Champaign, 17021 = Christian, All tags...
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Sulfur content (pounds of sulfur per million Btu) was mapped for the Herrin (No.6) Coal in Illinois using point source data (primarily channel samples and drill cores), information from coal company geologists, and observation of geologic trends associated with the formation of sulfur in coal.
Categories: Web Site; Tags: 17005 = Bond, 17011 = Bureau, 17017 = Cass, 17019 = Champaign, 17021 = Christian, All tags...
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This image represents the relief in and around the Illinois Basin. It can be show in relation to other spatial data in the Illinois Basin.
Categories: Web Site; Tags: 17005 = Bond, 17011 = Bureau, 17017 = Cass, 17019 = Champaign, 17021 = Christian, All tags...


    map background search result map search result map Sulfur content of the Herrin Coal in Illinois Hillshade image of the Illinois Basin Elevation of the Herrin Coal in Illinois Mined areas of the Springfield Coal in Illinois Thickness of the Danville Coal in Illinois Mined areas of the Springfield Coal in Illinois Sulfur content of the Herrin Coal in Illinois Elevation of the Herrin Coal in Illinois Thickness of the Danville Coal in Illinois Hillshade image of the Illinois Basin