|Quadrangle map, 1:250,000-scale||SR|
|Quadrangle map, 1:63,360-scale||D-5|
|Nearby scientific data||Find additional scientific data near this location|
|Location and accuracy||This occurrence is on the north side of Portage Pass in the E1/2 section 20, T. 8 N., R. 4 E., of the Seward Meridian. This is location 145 of Cobb and Tysdal (1980) and location S-181 of Jansons and others (1984). This location is accurate to within half a mile.|
Geologic descriptionThis occurrence is known only as a copper lode discovered in 1912 (Johnson, 1916). No development is known to have been done on it. Mapping by Nelson and others (1985) indicates that the area is underlain by Valdez Group rocks of Late Cretaceous age. No further data is available.
|Geologic map unit||(-148.783338786417, 60.7672441729638)|
|Age of mineralization||Cretaceous or younger, on the basis of the age of the country rock.|
|Indication of production||None|
Barnes, F.F., 1943, Geology of the Portage Pass area, Alaska: U.S. Geological Survey Bulletin 926-D, p. 211-235.
Cobb, E.H., and Tysdal, R.G., 1980, Summaries of data on and list of references to metallic and selected nonmetallic mineral deposits in the Blying Sound and Seward quadrangle, Alaska: U.S. Geological Survey Open-File Report 80-621, 276 p.
Jansons, Uldis, Hoekzema, R.B., Kurtak, J.M., and Fechner, S.A., 1984, Mineral occurrences in the Chugach National Forest, southcentral Alaska: U.S. Bureau of Mines Mineral Land Assessment 5-84, 218 p., 2 sheets, scale 1:250,000.
Johnson, B.L., 1916, Mining on Prince William Sound: U.S. Geological Survey Bulletin 642-D, p. 137-145.
|Reporters||Jeff A. Huber (Anchorage)|
|Last report date||12/9/1999|