|Quadrangle map, 1:250,000-scale||SR|
|Quadrangle map, 1:63,360-scale||D-7|
|Nearby scientific data||Find additional scientific data near this location|
|Location and accuracy||Sawmill Creek is mainly in section 10, T. 9 N., R. 1 E., of the Seward Meridian. Gold-bearing gravels are restricted to the mouth of the creek in the Seward D-6 quadrangle. The map site is at an elevation of about 400 feet along Sawmill Creek. This is location 9 of MacKevett and Holloway (1977), location 8 of Cobb and Tysdal (1980), and location P-71 of Jansons and others (1984). The location is accurate to within 300 feet.|
Geologic descriptionSawmill Creek occupies a short, steep, narrow, avalanche-debris-filled valley. Very little gravel has accumulated along the channel. Gold occurs in poorly sorted gravels near the mouth of the creek (Jansons and others, 1984). Mendenhall (1900) reported gold placer production from this creek but gave no details. Bedrock in this area is slate and graywacke of the Valdez Group of Late Cretaceous age (Nelson and others, 1985).
|Geologic map unit||(-149.257167496778, 60.8879465482237)|
|Mineral deposit model||Placer Au (alluvial) (Cox and Singer, 1986; model 39a).|
|Mineral deposit model number||39a|
|Age of mineralization||Quaternary.|
|Indication of production||Yes; small|
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.
Hoekzema, R.P., and Sherman, G.E., 1983, Mineral investigations in the Chugach National Forest, Alaska (Peninsula study area): U.S. Bureau of Mines in-house report; held at U.S. Bureau of Land Management Alaska State Office, Anchorage, 524 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.
Mendenhall, W.C., 1900, A reconnaissance from Resurrection Bay to the Tanana River, Alaska, in 1898, in Walcott, C.D., Twentieth annual report of the United States Geological Survey, 1898-1899: Part VII - explorations in Alaska in 1898: U.S. Geological Survey Annual Report 20-VII, p. 265-340.
Nelson, S.W., Dumoulin, J. A., and Miller, M.L., 1985, Geologic map of the Chugach National Forest, Alaska: U.S. Geological Survey Miscellaneous Field Studies Map MF-1645-B, 16 p., 1 sheet, scale 1:250,000.
|Reporters||Jeff A. Huber (Anchorage)|
|Last report date||3/7/2000|