mine sites

Places or areas from which commercial minerals are or were removed by excavation from the Earth. [Adapted from USGS Feature Class Definitions <http://geonames.usgs.gov/domestic/feature_class.htm>]

This category is also used for adits (mine sites), chrome mines, coal mines, collieries, copper mines, diatomite mines, gold mines, gravel pits, iron mines, lead mines, mine entrances, mine shafts, mines, mining areas, mining camps, nickel mines, open pit mines, placer mines, quarries, salt mines, strip mines, and tin mines