MARATHON COUNTY: Massive pyrite in bedrock is found in a gravel pit east of Hwy 34 in the SW Sec. 32 T26N R7E near Darcy (LaBerge and Myers, 1983). — Pyrite is found at the old gold mine site east of the Eau Claire River near Eason, just SW of the center of Sec. 26 T29N R9E.