ACTIVE INDUSTRIAL MINERAL SITES 2001 --
Active Industrial Mineral Operations, 2001 (Source scale is unknown)
Shows the locations of industrial mineral operations that were active in 2001
in Indiana. These operations extracted and (or) produced the following commodities:
cement, clay and shale, crushed stone, dimension limestone, dimension sandstone,
gypsum, lime, peat, and sand and gravel.
Compiled by the Indiana Geological Survey.
FGDC metadata: INDUSTRIAL_MINERALS_ACTIVE_2001_IN