Rain Bow

Prospect, Undetermined

Commodities and mineralogy

Geographic location

Quadrangle map, 1:250,000-scale SI
Quadrangle map, 1:63,360-scale C-7
Latitude 57.7053
Longitude -136.1174
Nearby scientific data Find additional scientific data near this location
Location and accuracy The Rain Bow prospect is at an elevation of about 1,000 feet on the northwest flank of Williams Hill, southeast of the head of Black Bay. The prospect is 0.4 mile north of the southwest corner of sec. 13, T. 48 S., R. 57 E. It is MAS no. 0021140118 (U.S. Bureau of Land Management, 2002). The location is accurate within about a mile.

Geologic setting

Geologic description

Johnson and Karl (1985) map the rocks in the area of this prospect as Cretaceous melange. The rocks are cut by northwest-striking, high-angle faults; these include the northwest extension of the fault at the Hirst Mine, which controls the mineralization there. Its trace is about a mile southwest of this prospect. The only published information about the prospect is that it is a lode claim staked for an unspecified commodity (U.S. Bureau of Land Management, 2002).
Geologic map unit (-136.119228698629, 57.7049260827755)

Production and reserves

Indication of production Undetermined

Additional comments

The prospect is in West Chichagof-Yakobi Wilderness.



U.S. Bureau of Land Management, 2002, Alaska mineral locations database report (Sitka quadrangle), July 2, 2002, 205 p. [http://imcg.wr.usgs.gov/dem.html]
Reporters H.C. Berg (U.S. Geological Survey)
Last report date 10/16/2004