|Quadrangle map, 1:250,000-scale||SI|
|Quadrangle map, 1:63,360-scale||D-1|
|Nearby scientific data||Find additional scientific data near this location|
|Location and accuracy||The Seymour Sulfide prospect is at sea level on the northwest shore of Windfall Harbor, 1.4 miles west-southwest of Late Point on Windfall Island. The prospect is 0.5 mile south-southeast of the center of sec. 18, T. 46 S., R. 69 E. It is MAS no. 0021140181 (U.S. Bureau of Land Management, 2002). The location is accurate within 0.2 mile.|
Geologic descriptionThe rocks in the vicinity of the Seymour Sulfide prospect are part of the Permian Cannery Formation which consists of graywacke, slate, phyllite, and conglomerate (Lathram and others, 1965). Little is known about this prospect other than that one or more claims were staked here for copper (U.S. Bureau of Land Management, 2002).
|Geologic map unit||(-134.295653022318, 57.8748634979612)|
|Age of mineralization||Permian or younger based on the age of the host rock.|
|Workings or exploration||Little is known about this prospect other than that one or more claims was staked here for copper.|
|Indication of production||None|
Additional commentsThe prospect is now within the Wilderness of the Admiralty Island National Monument and is closed to mineral exploration and development.
Lathram, E.H., Pomeroy, J.S., Berg, H.C., and Loney, R.A., 1965, Reconnaissance geology of Admiralty Island, Alaska: U.S. Geological Survey Bulletin 1181-R, p. R1-R48.
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||Donald Grybeck (U.S. Geological Survey)|
|Last report date||5/5/2005|