strip-mined

from WordNet (r) 3.0 (2006)

strip-mined
    adj 1: mined near the earth's surface by stripping

from The Collaborative International Dictionary of English v.0.48

mined \mined\ adj.
   extracted from a source of supply as of minerals from the
   earth. [Narrower terms: {deep-mined}; {exploited};
   {strip-mined}]
   [WordNet 1.5]