Illinois State Geological Survey 1996 2.0 (Prior to 1995 no version numbers had been assigned to this coverage. The previous coverage that partially depicted this data will heretofore be assigned as version 1.0 and this coverage is version 2.0.) map ISGS GIS Database coal7-84 Champaign, Illinois Illinois State Geological Survey This is the automated version of the Coal Resources Map (for the same coal seam) by J.D. Treworgy and M.H. Bargh (1984). Downloadable Data (Shift-Click to download data file) <URL:http://www.isgs.uiuc.edu/nsdihome/browse/statewide/coal7-84.e00> Browse Graphic (GIF) Screen-size image representing the nature of the data. <URL:http://www.isgs.uiuc.edu/nsdihome/browse/statewide/coal7-84b.gif> Text (.txt) version of this Metadata file. (Shift-Click to download documentation) <URL:http://www.isgs.uiuc.edu/nsdihome/outmeta/coal7-84.txt> HTML (.html) version of this Metadata file. (Shift-Click to download documentation) <URL:http://www.isgs.uiuc.edu/nsdihome/outmeta/coal7-84.html> This is an Arc/Info coverage showing coal resources (thickness, depth, and estimated average tonnages) for the Danville (No.7) coal in Illinois. In addition, arcs are coded to indicate the Pennsylvanian boundary, depth to (top surface) of coal (contours), and 28" and 42" coal isopach lines. This is the automated version of the Coal Resources Map for Danville (No. 7) Coal by J.D. Treworgy and M.H. Bargh (1984). This data set has a scale of 1:500,000. This data set was created as part of the ISGS GIS database to show distribution, thickness, depth, and tonnages for the Danville (No. 7) coal seam. The data are appropriate for regional analysis. none 1984 publication date of sources complete irregular -91.5826 -87.3840 42.4956 36.9535 none geology coal coal seams mineral resources none Illinois none Pennsylvanian none Reproduction or redistribution of copyrighted digital data sets or products derived therefrom outside of licensee's organization or entity is expressly forbidden. The only exception is redistribution to consultants working for the licensee, and then only for purposes, related to work for the licensee. Such consultants may not further reproduce or redistribute these data sets. None of these data shall be electronically duplicated on magnetic or optical media for use by others, in whole or in part, without permission of the appropriate custodial division within DNR. Any hardcopies utilizing DNR data sets shall clearly indicate their source. If the licensee has modified the data in any way they are obligated to describe the types of modifications they have performed on the hardcopy map. Licensee specifically agrees not to misrepresent DNR data sets, nor to imply that changes they made were approved by DNR. These data are not to be used for commercial profit. Illinois State Geological Survey Information Office mailing and physical address

615 East Peabody Drive

Champaign Illinois 61820 USA 217-333-4747 217-785-0211 217-244-0802 isgs@isgs.uiuc.edu 8:00 a.m. - 4:30 p.m., Monday-Friday, U.S. Central Time > GIS Processing: ISGS Staff > Documentation: D. Nelson and S. Beaverson > Quality Control: ISGS Staff SunOS UNIX, ARC/INFO version 7.0.4 Illinois State Geological Survey 1998 map ISGS GIS Database m2490py Champaign, Illinois Illinois State Geological Survey Outlines of areas mined for the Danville coal in Illinois as of January 1, 1996. Data Set Documentation <URL:http://www.isgs.uiuc.edu/nsdihome/outmeta/m2490py.html> Illinois State Geological Survey 1996 map ISGS GIS Database coal2-84 Champaign, Illinois Illinois State Geological Survey This is the automated version of the Coal Resources Map (for the same coal seams) by J.D. Treworgy and M.H. Bargh (1984). Data Set Documentation <URL:http://www.isgs.uiuc.edu/nsdihome/outmeta/coal2-84.html> Illinois State Geological Survey 1996 map ISGS GIS Database coalmix-84 Champaign, Illinois Illinois State Geological Survey This is the automated version of the Coal Resources Map (for the same coal seams) by J.D. Treworgy and M.H. Bargh (1984). Data Set Documentation <URL:http://www.isgs.uiuc.edu/nsdihome/outmeta/coalmix-84.html> Illinois State Geological Survey 1996 map ISGS GIS Database coal5-84 Champaign, Illinois Illinois State Geological Survey This is the automated version of the Coal Resources Map (for the same coal seam) by J.D. Treworgy and M.H. Bargh (1984). Data Set Documentation <URL:http://www.isgs.uiuc.edu/nsdihome/outmeta/coal5-84.html> Illinois State Geological Survey 1996 map ISGS GIS Database coal6-84 Champaign, Illinois Illinois State Geological Survey This is the automated version of the Coal Resources Map (for the same coal seam) by J.D. Treworgy and M.H. Bargh (1984). Data Set Documentation <URL:http://www.isgs.uiuc.edu/nsdihome/outmeta/coal6-84.html> Coal Section, Illinois State Geological Survey 19910101 map ISGS GIS Database clminept Champaign, Illinois Illinois State Geological Survey Data Set Documentation <URL:http://www.isgs.uiuc.edu/nsdihome/outmeta/clminept.html> Stiff, Barbara J. 1997 map ISGS GIS Database coalmines_py Champaign, Illinois Illinois State Geologic Survey Data Set Documentation <URL:http://www.isgs.uiuc.edu/nsdihome/outmeta/coalmines_py.html> Stiff, Barbara J. 1997 map ISGS GIS Database coalmines_py2 Champaign, Illinois Illinois State Geologic Survey Data Set Documentation <URL:http://www.isgs.uiuc.edu/nsdihome/outmeta/coalmines_py2.html> Illinois Office of Mines and Minerals 1995 map IDNR GIS Database coalprmt Springfield, Illinois Illinois Department of Natural Resources Data Set Documentation <URL:http://www.isgs.uiuc.edu/nsdihome/outmeta/coalprmt.html> The attributes of this coverage were reviewed in 1995-96 by comparison with the attributes of the source paper map and the lines of the source mylar separates. Source accuracy was not addressed in that review. A variety of visual techniques (polygon shading, line shading and line thicknesses tied to attribute values) and GIS processing techniques (checking for logical consistency) were used. Attribute values for arcs were verified by generating plots with arcs color-coded by designation. These were visually checked for errors. Polygon attribute items values were verified in a similar manner. For example, thickness and tonnage were checked by plotting maps with a unique color/symbol pattern for each possible combination. These check-plots were visually inspected for the proper designations, and all other polygon attributes were verified in the same way. In cases of incorrect or ambiguous attribute values, the sources of the source paper map were consulted, and corrections made. These reviews were performed in an iterative fashion by two or three individuals. There are no arc or polygon attribute values outside the appropriate value domains. Polygon and chain-node topology is present. The coverage was checked for complete chain-node topology (no dangling arcs, except where appropriate), polygon labels (one per polygon, except for universal polygon), correct regions topology, boundary values appropriate for map projection and map units, and appropriate "fuzzy" tolerances. There are no known arc, polygon or region attribute values outside the appropriate value domains. Mine boundaries are current as of 1984 and have not been updated since. Many coal seam boundaries have been generalized using section lines and/or county boundaries because the source data are proprietary. Not all coal seams in Illinois are included. This is a generalized depiction of regional ground condition. Horizontal positional accuracy was verified by manual overlay of source and hard-copy plots. Arcs within line-width of source maps are deemed acceptable. For positional accuracy of source maps, contact the ISGS Coal Section. See Completeness Report. Treworgy, J.D. and M.H. Bargh 1984 map ISGS Map same as title Champaign, Illinois Illinois State Geological Survey 500000 paper 1984 publication date none All attribute information Hunter, K. n/a map 500000 mylar 1984 approximate printing date none coal seam boundary lines and 1000 foot depth contours Hunter, K. n/a map 500000 mylar 1984 approximate printing date none coal seam 150 foot depth contours Hunter, K. n/a map 500000 mylar 1984 approximate printing date none Pennsylvanian boundary lines Illinois State Geological Survey 1984 map ISGS GIS Database townships Champaign, Illinois Illinois State Geological Survey Data Set Documentation <URL:http://www.isgs.uiuc.edu/nsdihome/outmeta/townships.html> 24000 and 62500 digital data set 1984 publication date none townships lines where used as coal seam boundary Illinois State Geological Survey 1984 map ISGS GIS Database counties Champaign, Illinois Illinois State Geological Survey Data Set Documentation <URL:http://www.isgs.uiuc.edu/nsdihome/outmeta/counties.html> 24000 and 62500 digital data set 1984 publication date none county boundaries where used as coal seam boundary Cady, G.H., and others 1952 report ISGS Bulletin 78 Champaign, Illinois Illinois State Geological Survey 138 pages, 8 plates, 37 figures, 1 table Plate 7 available separately out of print 500000 paper 1952 publication date none not available Clegg, K.E 1972 report Circular 473 Champaign, Illinois Illinois State Geological Survey 25 pages, 4 plates, 8 figures, 1 table 1 inch = 2 miles (approx.) paper 1972 publication date none not available Jacobson, R.J. 1985 report ISGS Circular 536 Champaign, Illinois Illinois State Geological Survey 58 pages, 6 plates including cross-section, 31 figures, 10 tables 125000 paper 1985 publication date none not available Jacobson, R.J., and L.E. Bengal 1981 report Circular 521 Champaign, Illinois Illinois St. Geological Survey 24 pages, 1 plate, 6 figures, 3 tables 1 inch = 2 miles (approx.) paper 1981 publication date none not available Smith, W.H. 1957 report Circular 228 Champaign, Illinois Illinois State Geological Survey 39 pages, 2 figures, 2 plates, 5 tables Plate 3 available separately 1 inch = 2 miles (approx.) paper 1957 publication date none not available Smith, W.H. and D.J. Berggren 1963 report Circular 348 Champaign, Illinois Illinois State Geological Survey 59 pages, 4 plates, 7 figures, 8 tables Plates 1, 2, and 3 available separately 1 inch = 2 miles (approx.) paper 1963 publication date none not available Smith, W.H. 1968 report Circular 419 Champaign, Il Illinois St. Geological Survey 29 pages, 2 plates, 6 figures, 6 tables Plate 1 available separately 1 inch = 2 miles (approx.) paper 1968 publication date none not available Treworgy, C.G. and M.H. Bargh 1982 report Circular 527 Champaign, Illinois Illinois State Geological Survey 65 pages, 2 plates, 25 figures, 5 tables 1 inch = 24 miles (approx.) paper 1982 publication date none not available Tics: Tics which correspond to the registration marks on the mylar separates were taken from the coal coverage BASE, which was automated in 1984 by ESRI. 1995 Digitizing: The coverage was digitized from the mylar separates that were used in the printing of the published hard copy maps. The separates were obtained from Colin Treworgy, ISGS Coal Section. Three separates were used: > 1) black line separate, representing all boundaries of coal bodies, > 2) red line separate, representing the 150 foot depth line, and > 3) Pennsylvanian boundary separate. Separates were digitized at the 1:500,000 scale on a GTCO Super L II digitizing board. Red and black lines were digitized by M. Riggs during February 1995, with a maximum RMS of 0.007. The Pennsylvanian boundary was digitized into a separate coverage by M. Riggs during June, 1995, with a maximum RMS of 0.005. 1995 Processing > 1. There are township and county boundary arcs on the > published map which are not on the mylars. The > corresponding arcs were copied from the COUNTIES > and TOWNSHIPS coverages in the ISGS *path_name_suppressed*/ILLIMAP > directory and incorporated into this coverage. > > 2. The Pennsylvanian boundary arcs were copied into > the coverage. > > 3. Items for the .PAT and the .AAT files were added > to the coverage. > The .PAT items were: > thick 2 2 i > depth 2 2 i > tons 2 2 i > penn 2 2 i > done 2 2 i > > The .AAT items were: > thick 2 2 i > depth 2 2 i > penn 2 2 i > qual 2 2 i > done 2 2 i > > The "done" items were used during the attribute coding > phase to indicate whether or not coding of a feature was > complete. When this phase was complete, the "done" items > were deleted from the .PAT and .AAT files. > > 4. Polygon and arc codes for the coverage were attributed > according to the information depicted on the published > map. In several cases, depth assignments were not obvious > on the published map: in this case the source publications > listed on the published map were consulted in order to > make a depth assignment. 1995 Revisions: Prior to 10-10-95 no version numbers had been assigned to this coverage. The previous coverage that partially depicted this data will heretofore be assigned as version 1.0, and this coverage is version 2.0. 1995 Reviews Applied to Data: In Summer and Fall 1995 the coverage underwent extensive Quality Assurance/Quality Control review as a preliminary step. Linework was verified by overlaying a plot of the arc on the original mylars. Digitized arcs within one line-width of the original linework were deemed acceptable. Those outside one line-width were corrected. Attribute values were verified by comparing a set of plots (that depicted the value of the .AAT or .PAT attribute) with the published maps. The AML programs used to generate the check plots are called COALPLOT.AML, COALLINE.AML and COALPENN.AML. 1995 Vector Point 510 String 1183 GT-polygon composed of chains 511 Lambert Conformal Conic 33 0 0.000 45 0 0.000 -89 30 0.000 33 0 0.000 914400.00000 meters 0.00000 coordinate pair unknown unknown feet NAD27 CLARKE1866 6378206.4 meters 294.98 > Attribute items are in typical ARC/INFO feature class format. > User-defined attributes are: > > Polygon attributes: > THICK - thickness of the coal seam > 0 - mined out > 1 - coal is greater than 42 inches thick > 2 - coal is from 28-42 inches thick > 3 - coal is from 18-28 inches thick > 4 - insufficient data for resource estimation > or unmapped area > 5 - coal split or thin > 6 - coal missing due to sandstone channels > 7 - coal eroded > 8 - not used > 9 - outside limit of coal seam > 10 - coal deeper than 150 feet and less than 28 inches > thick or coal shallower than 150 feet and less > than 18 inches thick > 11 - area of potential resources; resources cannot be > categorized at this scale due to irregularity of thickness > 12 - coal less than 42 inches thick; > resources not calculated > > DEPTH - depth to the coal body (feet below land surface) > 0 - mined out > 1 - depth to coal less than 150 feet > 2 - depth to coal 150-1000 feet > 3 - depth to coal greater than 1000 feet > 4 - depth to coal less than 1000 feet > 5 - not used > 6 - not used > 7 - not used > 8 - coal not present > 9 - outside limit of coal seam > 10 - coal deeper than 150 feet and less than 28 inches > thick or coal shallower than 150 feet and less > than 18 inches thick > 11 - area of potential resources; resources cannot be > categorized at this scale due to irregularity of thickness > > TONS - estimated average tons of coal in millions of tons of > coal per square mile (estimates based on an assumed > coal density of 1800 tons per acre-foot) > 1 - less than 4 tons > 2 - 4 to 5.5 tons > 3 - 5.5 to 7 tons > 4 - greater than 7 tons > 5 - tonnage not calculated or not applicable > > PENN - indicates whether or not polygon is within > Pennsylvanian boundary > 0 - polygon is outside Pennsylvanian boundary > 1 - polygon is within Pennsylvanian boundary > > > Arc attributes: > There are four user-defined arc attributes for the coverage. > They are: > > THICK - indicates if arc is a coal isopach, and if so, the > thickness value associated with the isopach > 0 - arc is not an isopach > 1 - 28 inch isopach > 2 - 42 inch isopach > > DEPTH - indicates if arc is a depth contour, and if so, the > depth value (to the surface of the coal body) > associated with the depth contour > 0 - arc is not a depth contour > 1 - 150 foot depth contour > 2 - 1000 foot depth contour > > PENN - indicates whether or not arc is a part of the > Pennsylvanian boundary > 0 - arc is not a part of the Pennsylvanian boundary > 1 - arc is a part of the Pennsylvanian boundary > > QUAL - indicates if arc is represented in coverage > differently than it appears on source map > (qualifier for lines differing from source map) > 0 - no qualifier, line appears as a solid line on source map > 1 - line is dashed on source map > 2 - line does not appear on source map, has been > added in order to close a polygon none Illinois State Geological Survey Information Office mailing and physical address

615 East Peabody Drive

Champaign Illinois 61820 USA 217-333-4747 217-785-0211 217-244-0802 isgs@isgs.uiuc.edu 8:00 a.m. - 4:30 p.m., Monday-Friday, U.S. Central Time The Illinois Department of Natural Resources (DNR) provides these geographic data "as is." DNR makes no guarantee or warranty concerning the accuracy of information contained in the geographic data. DNR further makes no warranties, either expressed or implied as to any other matter whatsoever, including, without limitation, the condition of the product, or its fitness for any particular purpose. The burden for determining fitness for use lies entirely with the user. Although these data have been processed successfully on computers of DNR, no warranty, expressed or implied, is made by DNR regarding the use of these data on any other system, nor does the fact of distribution constitute or imply any such warranty. In no event shall the DNR have any liability whatsoever for payment of any consequential, incidental, indirect, special, or tort damages of any kind, including, but not limited to, any loss of profits arising out of use of or reliance on the geographic data or arising out of the delivery, installation, operation, or support by DNR. An Arc/Info .e00 (export) file is currently available free of charge at the Illinois Natural Resources Geospatial Data Clearinghouse. Refer to the Citation Information portion of this file for access to downloadable data and metadata, and a visual (GIF image) representation of the data. Shift-click to download the data set and related documentation. (Data and metadata offered separately, please download both files.) 19980615 19970324 19980501 Illinois State Geological Survey Information Office mailing and physical address

615 East Peabody Drive

Champaign Illinois 61820 USA 217-333-4747 217-785-0211 217-244-0802 isgs@isgs.uiuc.edu 8:00 a.m. - 4:30 p.m., Monday-Friday, U.S. Central Time FGDC Content Standards for Digital Geospatial Metadata FGDC-STD-001-1998 none none