Dillon Creek District
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Dillon Creek, a tributary of the lower Klamath River, is in western Siskiyou County. It was originally placer-mined during the gold rush, and the general area was prospected again in the 1930s. The Siskon mine was discovered in 1951 and operated on a large scale from 1953 until 1960, one of the last significant gold discoveries and operations in the state. Although the value of its production is unrecorded, it has been estimated at several million dollars. The deposit consisted of an extensive mass of gold-bearing gossan that overlay a body of pyrite-bearing schist and quartz stringers. It was worked chiefly in benched cuts, although some of the stringers were mined underground. The ore was concentrated and the concentrates treated in a cyanidation plant.
Symons, H. H., and Davis, F. F., 1958, Gold: California Jour. Mines and Geology, vol. 54, p. 102.
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