02053oam 2200457Ia 450 991069591220332120070821124612.0(CKB)5470000002374683(OCoLC)163575313(EXLCZ)99547000000237468320070809d2007 ua 0engurmn|||||||||txtrdacontentcrdamediacrrdacarrierAssessment of hydrology, water quality, and trace elements in selected placer-mined creeks in the Birch Creek watershed near Central, Alaska, 2001-05[electronic resource] /by Ben W. Kennedy and Dustin E. Langley ; prepared in cooperation with the Bureau of Land ManagementReston, Va. :U.S. Geological Survey,2007.viii, 50 pages digital, PDF fileScientific investigations report ;2007-5124Title from PDF title screen (viewed on Aug. 7, 2007).Includes bibliographical references (pages 38-40).Placer miningEnvironmental aspectsAlaskaBirch Creek Watershed (Yukon-Koyukuk Census Area)HydrologyAlaskaBirch Creek Watershed (Yukon-Koyukuk Census Area)Water qualityAlaskaBirch Creek Watershed (Yukon-Koyukuk Census Area)Trace elementsEnvironmental aspectsAlaskaBirch Creek Watershed (Yukon-Koyukuk Census Area)Placer miningEnvironmental aspectsHydrologyWater qualityTrace elementsEnvironmental aspectsKennedy Ben W1382493Langley Dustin E1381043United States.Bureau of Land Management.Geological Survey (U.S.)GISGISGPOBOOK9910695912203321Assessment of hydrology, water quality, and trace elements in selected placer-mined creeks in the Birch Creek watershed near Central, Alaska, 2001-053543103UNINA