| Online link | https://doi.org/10.3133/ofr20131047 |
|---|---|
| Description | This report releases data for waters in which naturally occurring acid-rock drainage occurs but acid-mine drainage from historical mining continues to contribute dissolved metals further degrading preexisting water quality. |
| Originators | Johnson, Raymond H., Yager, Douglas B. |
| Publication | U.S. Geological Survey Open-File Report 2013-1047 |