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Layer: all_illinois_mines (48)

Name: all_illinois_mines

Display Field: TYPE

Type: Feature Layer

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Description: Outlines for areas mined by active coal mines in Illinois as of July 2012. Updated underground mine outlines as of January 1, 2012 and surface mine outlines as of June 30, 2011 are included. Information was extracted from company mine maps, DNR surface mine shapefile, and NAIP Digital Ortho Photo Images. 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 included in this coverage. Additional information is available from the Coal Section of the Illinois State Geological Survey. This datafile was compiled and updated in 2012 in order to provide a current, state-wide data set showing active surface and underground coal mines. Due to the wide range of source map scales, these data are suitable for regional applications only at the 1:100,000 scale or smaller.

Copyright Text: Data capture, compilation and library maintenance: Marge Bargh, Colin Treworgy, and other ISGS Coal Section staff Compilation of library tiles to create this product: Chris Korose Documentation: Cheri Chenoweth, Chris Korose, and Andrew Louchios Quality Review: Cheri Chenoweth, Chris Korose, and Andrew Louchios

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YMin: 4494227.309199996
XMax: -9744005.492
YMax: 5098826.029600002
Spatial Reference: 102100  (3857)



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