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Elevation Ranges of the Danville Coal Member (Dugger Formation, Pennsylvanian) in West-Central Indiana: Indiana, 2002

From 1985 to 1994, a series of reports on coal resources of selected counties in Indiana was published as part of the Special Report series of the Indiana Geological Survey. These reports included maps showing elevation of the Danville Coal Member (Dugger Formation, Pennsylvanian). The elevation maps were based on coal-test records and interpretations of geophysical logs that are included in the files of the Indiana Geological Survey. Data points were plotted by coal geologists of the Indiana Geological Survey and elevation contours were drawn by hand. The original work maps were compiled at a scale of 0.5 inch = 1 mile (scale, 1:126,720). Following completion of the investigations, the work maps showing elevation contours were subsequently scanned and digitized, and the resulting county coverages were then compiled into a single multicounty coverage. Elevations are given in feet, and the contour interval is 20 feet. Since the completion of this shapefile, additional data on coalbed elevations in selected areas has been obtained by the Indiana Geological Survey; interested users may wish to contact the Indiana Geological Survey for information on these more up-to-date sources.
Indiana, United States, Tippecano County, Indiana, United States, and Wabash River, Indiana, United States
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