SURFACE MINES --
Surface Coal Mines, 20091231 (1:24,000)
Shows the locations and extents of surface coal mines for the period from the early 1900s to 2000. Mines can be differentiated based on mine type, mine number, source information, and dates of mining.
Original source information includes company mine maps, field maps and notes of IGS geologists, IGS publications, Indiana State Mine Inspector Reports, several series of aerial photographs, and U.S. Geological Survey 7.5-minute quadrangle maps.
FGDC metadata: COAL_MINE_SURFACE_IN