Penn State looks to fix acid mine drainage, recover rare earth metals
Patrick Varine | Tribune-Review
Brush Creek in South Trafford Park runs a brownish-orange color from the presence of iron sulfide, or pyrite, from an abandoned mine that has leached into the stream.
Patrick Varine | Tribune-Review
This section of Duff Run, behind Rodi Road in Penn Hills, is an unnatural bright-blue because of aluminum runoff from a nearby abandoned mine.
Patrick Varine | Tribune-Review
Brush Creek in South Trafford Park runs a brownish-orange color from the presence of iron sulfide, or pyrite, from an abandoned mine that has leached into the stream.
