TY - RPRT TI - Geochemical characterization of water, sediment, and biota affected by mercury contamination and acidic drainage from historical gold mining, Greenhorn Creek, Nevada County, California, 1999-2001 AU - Charles N. Alpers AU - Michael P. Hunerlach AU - Jason T. May AU - Roger L. Hothem AU - Howard E. Taylor AU - Ronald C. Antweiler AU - John F. De Wild AU - David A. Lawler PY - 2005 DO - 10.3133/sir20045251 UR - https://pubs.usgs.gov/publication/sir20045251 ID - sir20045251 ER -