Recent interdisciplinary studies by the U.S. Geological Survey (USGS) have resulted in substantial progress in understanding the processes that control
* the release of metals and acidic waters from inactive mines and mineralized areas,
* the transport of metals and acidic waters to streams, and
* the fate and effect of metals and acidity on downstream ecosystems.
Additional publication details
USGS Numbered Series
Understanding Contaminants Associated with Mineral Deposits