Stream sediment , sluice box concentrates, and pan concentrates samples for Ag, Au, Pd, Pt, Rh were prepped by fire-assay digestion. Analysis of samples for Ag, Au, Pd, Pt, Rh, Co, Cr, Cu, Fe, Ni, Pb, and Zn by Flame Atomic Absorption Spectroscopy. Hg analysis by Cold Vapor Atomic Absorption Spectroscopy.