Ingram Creek

Mine, Inactive

Commodities and mineralogy

Main commodities Au
Other commodities Cu; W
Ore minerals chalcopyrite; gold; scheelite

Geographic location

Quadrangle map, 1:250,000-scale SR
Quadrangle map, 1:63,360-scale D-6
Latitude 60.8267
Longitude -149.1039
Nearby scientific data Find additional scientific data near this location
Location and accuracy Ingram Creek is located in T. 8 and 9 N., R. 2 E., of the Seward Meridian. Ingram Creek flows northeast from Turnagain Pass into Turnagain Arm, a distance of about six miles. Evidence of previous placer workings are concentrated in the lower two-thirds of the creek. This is location P-69 of Jansons and others (1984) and locations 153 to 156 of Tysdal (1978 [MF-800B]). This location is accurate to within 300 feet.

Geologic setting

Geologic description

Bedrock in the area is slate and graywacke of the Valdez Group of Late Cretaceous age Nelson and others, 1985). Ingram Creek flows in a narrow steep-walled canyon that is within a wide U-shaped glacial valley. The creek has a high gradient and many waterfalls and rapids. There is some evidence of early prospecting in the lower part of the creek, but no signs of large-scale operations. Gold occurs throughout the stream bed, without enrichment on bedrock (Jansons and others, 1984). Concentrate samples contained chalcopyrite and scheelite (Jasper, 1967). No assay results are reported.
Geologic map unit (-149.106055398503, 60.8261225628051)
Mineral deposit model Placer Au (alluvial) (Cox and Singer, 1986; model 39a).
Mineral deposit model number 39a
Age of mineralization Quaternary.

Production and reserves

Workings or exploration There is some evidence of early prospecting in the lower part of the creek, but no signs of large-scale operations. Currently, some sections of the creek are used for recreational suction dredging (C. S. Huber, oral communication, 2000). Concentrate samples contain chalcopyrite and scheelite (Jasper, 1967). No assay results are reported.
Indication of production Yes; small
Production notes Total production is estimated to be less than 25 ounces of gold (Jansons and others, 1984).

References

MRDS Number A010632

References

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.
Mitchell, P.A., 1979, Geology of the Hope-Sunrise (gold) mining district, north-central Kenai Peninsula, Alaska: Stanford University Master of Science thesis, 123 p.
Reporters Jeff A. Huber (Anchorage)
Last report date 3/7/2000