Unnamed (near tributary to Arcana Creek)

Mine, Undetermined

Commodities and mineralogy

Main commodities Hg
Ore minerals cinnabar

Geographic location

Quadrangle map, 1:250,000-scale DI
Quadrangle map, 1:63,360-scale B-7
Latitude 59.28
Longitude -158.535
Nearby scientific data Find additional scientific data near this location
Location and accuracy This placer mine is near the mouth of an unnamed tributary to Arcana Creek in the central part of Marsh Mountain. This is the small creek that drains north from the Red Top Mine (DI002) for about 0.4 mile. The placer mine is about about 0.3 mile west of the center of section 27, T. 10 S., R. 55 W., of the Seward Meridian.

Geologic setting

Geologic description

Placer cinnabar has been known on Arcana Creek since 1941, when the cinnabar was traced upstream to discover the Red Top Mine (DI002) ((Sainsbury and MacKevett, 1965). Apparently, however, no placer mining took place on Arcana Creek or its tributaries until 1969, when Clarence Wren of Dillingham operated a small placer mine about 0.4 mile north of the Red Top Mine on the creek that extends north from the mine (Clarence Wren, personal communication, 1970; D.J. Grybeck, unpublished field notes, 1970). Panned samples from the lower part of the creek were often exceptionally rich in cinnabar with nuggets up to 1/2 inch in size; pans in the upper part of the creek where it flowed on bedrock had only small amounts of cinnabar. In 1969, Wren mined with with indifferent results using a front-end loader, D6 tractor, and a sluice box. He attributed the results to inexperience and inappropriate recovery methods. About 5 gallons of cinnabar concentrate was produced. Apparently, there has been no mining since. The source of the cinnabar is almost certainly the Red Top deposit at the head of this creek.
The rocks in the area consist of interbedded, very fine- to very coarse-grained graywacke, calcareous graywacke, and siltstone. Wilson and others (2006) include them in their 'Graywacke of Kululak Bay' unit of Middle and Upper Jurassic age.
Geologic map unit (-158.53719997617, 59.279257650135)
Mineral deposit model Placer cinnabar.
Age of mineralization Placer in Quaternary gravel.

Production and reserves

Workings or exploration Some placer mining in 1969 with a front-end loader, D6 tractor, and a sluice box.
Indication of production Yes; small
Production notes About 5 gallons of cinnabar concentrates was produced in 1969.

References

Reporters D.J. Grybeck (Contractor, U.S. Geological Survey)
Last report date 4/2/2010