References
•Interstate Mining Compact Commission (IMCC), 1992. Inactive and Abandoned Non-Coal Mines: a Scoping Study. Prepared for IMCC of Herndon, VA by Resource Management Associates, Clancy, MT. Cooperative Agreement, X-817900-01-0.
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•Duren, S., 2002. Quantitative Hydrologic Evaluation of Dissolves Metal Loading and Transport in Peru Creek, an Acid Rock Drainage Stream; Summit County, Colorado. University of Colorado at Boulder, p130.