Rainy Creek

Mine, Inactive

Commodities and mineralogy

Main commodities Au; Hg
Ore minerals cinnabar; gold

Geographic location

Quadrangle map, 1:250,000-scale BH
Quadrangle map, 1:63,360-scale A-4
Latitude 60.01
Longitude -160.14
Nearby scientific data Find additional scientific data near this location
Location and accuracy This placer mine is in the southeast corner of the Bethel A-4 quadrangle. It is in the headwaters of Rainy Creek, an east tributary to upper Eek River. The placer mine workings are present over about 3/4 mile of Rainy Creek and the coordinate location is the approximate midpoint of the workings, just downsteam from the mouth of Arsenic Creek (BH001). This is locality 7 of Cobb (1972 [MF 455]) and of Hoare and Cobb (1977). It is in the Togiak National Wildlife Refuge and the Togiak Wilderness.

Geologic setting

Geologic description

About 0.7 mile of upper Rainy Creek has been placer mined (Rutledge, 1948, fig. 3). This includes operations both above and below the mouth of Arsenic Creek, a small south tributary to Rainy Creek with identified lode mercury mineralization (BH001). A small part of the placer deposit extends downstream into the Goodnews Bay quadrangle (GO012). The upper drainage does not appear to have been glaciated and the gravels are locally derived. The placer operations recovered both gold and cinnabar. About 2,000 pounds of cinnabar were recovered and shipped, mostly from Rainy Creek below the mouth of Arsenic Creek. Some cinnabar was recovered from above the mouth of Arsenic Creek; a possible bedrock source for this cinnabar was identified on the south side of Rainy Creek, 1.25 miles above the mouth of Arsenic Creek (Rutledge, 1948, p. 7). Bedrock in upper Rainy Creek and its tributaries is clastic sedimentary rocks of the mid-Cretaceous Kuskokwim Group locally cut by mafic dikes or sills (Rutledge, 1948; Box and others, 1993).
Geologic map unit (-160.142245093225, 60.0092499413331)
Mineral deposit model Placer Au-PGE with cinnabar (Cox and Singer, 1986; model 39a).
Mineral deposit model number 39a
Age of mineralization Quaternary.

Production and reserves

Workings or exploration Open-cut placer workings are present along about 0.7 mile of the creek. Mining occurred sometime between 1920 and 1946.
Indication of production Yes; small
Production notes About 2000 pounds of cinnabar were recovered from the placer operation (Malone, 1962). No figures are available on gold production.

References

MRDS Number A010313; A013391
Reporters Travis L. Hudson
Last report date 3/24/2001