Also Known As:	Acacia, Buckeye, Saugatuck
Commodity:	Gold, Silver
Span of Operation:	1860's - 1970
County:	Alpine
Property Ownership:	Unknown
Location:	Sec. 8,9,16 T. 9 N. R. 20 E.

Show Mine on Map (Experimental)

Clark, William B., 1977
Mines and Mineral Resources of Alpine County, California; p. 29

The Exchequer mine is at the head of I.X.L., or Scandinavian, Canyon and is just northwest of the I.X.L. mine. The property consists of four claims: the Acacia, Buckeye, Exchequer, and Saugatuck located in secs. 8, 9, and 16, T. 9 N., R. 20 E., M.D.M. The claims were located during the "boom" of the early 1860s. Some production was recorded from high-grade ore that was processed elsewhere.

Later, the claims came under the control of the Isabella Mining Company of London, England. Vast amounts of money were spent. Some reports indicate as much as $500,000 was spent on the mine, mill, and surface plant. Some ore was treated at a 16-stamp mill and roasting furnace located to the south by Silver Creek, but the recoveries were small. Some prospecting work was done in the mine in 1967-70 by Carl Munck.

Three roughly parallel north-northwest-striking ledges or veins of silicified breccia exist in altered volcanic rocks. The veins have nearly vertical dips and an average thickness of 5 feet. In places, varying amounts of gold- and silver-bearing sulfides are found. As in other mines in the district, the complex sulfide or "rebellious" ores were extremely difficult to concentrate. The mine is developed by several drift adits, including one 810 feet long on the Buckeye vein, and a 200-foot shaft.