Half Dollar Creek

The Half Dollar Creek is a gold mine located in Alaska.

About the MRDS Data:

All mine locations were obtained from the USGS Mineral Resources Data System. The locations and other information in this database have not been verified for accuracy. It should be assumed that all mines are on private property.

Mine Info

Name: Half Dollar Creek

State: Alaska

County: na

Elevation:

Commodity: Gold

Lat, Long: 65.42278, -144.78972

Map: View on Google Maps

Satelite View

MRDS mine locations are often very general, and in some cases are incorrect. Some mine remains have been covered or removed by modern industrial activity or by development of things like housing. The satellite view offers a quick glimpse as to whether the MRDS location corresponds to visible mine remains.

Satelite image of the Half Dollar Creek

Half Dollar Creek MRDS details

Site Name

Primary: Half Dollar Creek
Secondary: Two-Bit Gulch

Commodity

Primary: Gold
Tertiary: Tungsten
Tertiary: Tin

Location

State: Alaska
District: Circle

Land Status

Not available

Holdings

Not available

Workings

Not available

Ownership

Not available

Production

Not available

Deposit

Record Type: Site
Operation Category: Producer
Operation Type: Unknown
Discovery Year: 1909
Years of Production:
Organization:
Significant: N
Deposit Size: S

Physiography

Not available

Mineral Deposit Model

Not available

Orebody

Not available

Structure

Not available

Alterations

Not available

Rocks

Not available

Analytical Data

Not available

Materials

Ore: Gold
Unknown: Cassiterite
Unknown: Scheelite

Comments

Comment (Deposit): PRODUCTION FROM THESE OPERATIONS IS UNKNOWN.

Comment (Commodity): SEVERAL MINERALS IN SAMPLE OF GRANITE FOUND TO BE SLIGHTLY URANIFEROUS

Comment (Deposit): Discovery Year: 1909-10

Comment (Production): PROSPECTING AND/OR MINING OCCURRED IN 1909 TO 1914, 1935, 1938 TO 1942, AND PROBABLY 1976 TO 1980 (MENZIE AND OTHERS, 1983). SEVERAL SMALL PLACERS WERE OPERATED ALONG THIS DRAINAGE IN THE EARLY 1980'S (YEEND, 1991). AMOUNT OF GOLD PRODUCED FROM THESE OPERATIONS IS UNKNOWN.

Comment (Deposit): THE ENTIRE LENGTH OF BOTH TWO-BIT CREEK AND HALF DOLLAR CREEK IS UNDERLAIN BY A CRETACEOUS PLUTON DESCRIBED BY WILTSE AND OTHERS (1995) AS CHLORITIZED PORPHYRITIC (HORNBLENDE) BIOTITE MONZOGRANITE. PRIMARY TRACE MINERALS IN THE GRANITE INCLUDE ZIRCON, ALLANITE, APATITE AND ILMENITE. URANIUM HAS BEEN DETECTED BY FLUORIMETRIC TESTS (EBERLEIN AND OTHERS, 1977). MINERALS IN THE HEAVY-MINERAL FRACTION OF CONCENTRATES FROM THE GRANITE CONTAIN ALLANITE, HEMATITE, LIMONITE, PYRRHOTITE, SCHEELITE, SPHENE AND ZIRCON. STREAM PLACER CONCENTRATES CONTAIN GOLD, SCHEELITE AND CASSITERITE. THE PAYSTREAK IS NARROW AND THE GOLD DISTRIBUTION IS SPOTTY (COBB, 1976, [OFR 76-633]). THE UNMINED GRAVEL ON HALF DOLLAR CREEK IS MOSTLY COLLUVIUM DERIVED FROM SIDE SLOPES (YEEND, 1991). PROSPECTING AND/OR MINING OCCURRED IN 1909 TO 1914, 1935, 1938 TO 1942, AND PROBABLY 1976 TO 1980 (MENZIE AND OTHERS, 1983). SEVERAL SMALL PLACERS WERE OPERATED ALONG THIS DRAINAGE IN THE EARLY 1980'S (YEEND, 1991).

Comment (Workings): PROSPECTING AND/OR MINING OCCURRED IN 1909 TO 1914, 1935, 1938 TO 1942, AND PROBABLY 1976 TO 1980 (MENZIE AND OTHERS, 1983). SEVERAL SMALL PLACERS WERE OPERATED ALONG THIS DRAINAGE IN THE EARLY 1980'S (YEEND, 1991).

Comment (Location): THE LOCATION IS THE APPROXIMATE CENTER OF PLACERED AREA ABOUT 0.5 MILES LONG BY 1,000 FT WIDE ON HALF DOLLAR CREEK BELOW THE MOUTH OF TWO-BIT GULCH. SOME MINING WAS ON TWO-BIT.

Comment (Deposit): SEE ALSO BOTTOM DOLLAR CREEK, ARDF NO. CI007; USGS OFR 83-170-B, APPENDIX I, NO. 55, 109

Comment (Exploration): Status = Inactive

References

Reference (Deposit): Ellsworth, C. E. and Parker, G. L., 1911, Placer mining in the Yukon-Tanana region: U.S. Geological Survey Bulletin 480, p. 153-172.

Reference (Deposit): Ellsworth, C. E., 1912, Placer mining in the Fairbanks and Circle Disctricts: U.S. Geological Survey Bulletin 520, p. 240-245.

Reference (Other Database): BAG-OFR-83-170B-55

Reference (Deposit): Ellsworth, C. E. and Davenport, R. W., 1913, Placer mining in the Yukon-Tanana Region: U.S. Geological Survey Bulletin 542, p. 203-222.

Reference (Deposit): Brooks, A. H., 1914, The Alaskan mining industry in 1913: U.S. Geological Survey Bulletin 592-A, p. 45-74.

Reference (Deposit): Smith, P. S., 1939, Mineral industry of Alaska in 1938: U.S. Geological Survey Bulletin 917-A, p. 1-106.

Reference (Deposit): Smith, P. S., 1937, Mineral industry of Alaska in 1935: U.S. Geological Survey Bulletin 880-A, p. 1-88.

Reference (Deposit): Brooks, A. H., 1915, The Alaskan mining industry in 1914: U.S. Geological Survey Bulletin 622, p. 15-68.

Reference (Deposit): Cobb, E. H., 1973, Placer deposits of Alaska: U.S. Geological Survey Bulletin 1374, 213 p.

Reference (Deposit): Cobb, E. H., 1972, Metallic mineral resources map of the Circle quadrangle, Alaska: U.S. Geological Survey Misc. Field Studies Map 391, 1 sheet, scale 1:250,000.

Reference (Deposit): Chapin, T., 1914, Placer mining in the Yukon-Tanana region: U.S. Geological Survey Bulletin 592-J, p. 357-362.

Reference (Deposit): Nelson, A. E., West, W. S., and Matzko, J. J., 1954, Reconnaissance for radioactive deposits in eastern Alaska, 1952: U.S. Geological Survey Circular 348, 21 p.

Reference (Deposit): Yeend, W. E., 1991, Gold placers of the Circle district, Alaska - past, present, and future: U.S. Geological Survey Bulletin 1943, 42 p.

Reference (Deposit): Wiltse, M. A., Reger, R. D., Newberry, R. J, Pessel, G. H., Pinney, D. S., Robinson, M. S., and Solie, D. N., 1995, Bedrock geologic map of the Circle mining district, Alaska: Alaska Division of Geological and Geophysical Surveys Report of Investigations 95-2b, 1 sheet, scale 1:63,360.

Reference (Deposit): Smith, P.S., 1941, Mineral industry of Alaska in 1939: U.S. Geological Survey Bulletin 926-A, p. 1-106.

Reference (Deposit): Joesting, H.R., 1943, Strategic mineral occurrences in interior Alaska, supplement to pamphlet no. 1: Alaska Territorial Department of Mines Pamphlet 2, 26 p.

Reference (Deposit): Smith, P.S., 1942, Mineral industry of Alaska in 1940: U.S. Geological Survey Bulletin 933-A, p. 1-102.

Reference (Deposit): Bundtzen, T. K., Eakins, G. R., Green, C. B., and Lueck, L. L., 1986, Alaska's mineral industry 1985: Alaska Division of Geological and Geophysical Surveys Special Report 39, 68 p.

Reference (Deposit): Menzie, W. D., Foster, H. L., Tripp, R.B., and Yeend, W. E., 1983, Mineral resource assessment of the Circle quadrangle, Alaska: U.S. Geological Survey Open-File Report 83-170-B, 61 p., 1 sheet, 1:250,000.

Reference (Deposit): Barker, J. C., 1979, Trace element study of the Circle mining district, Alaska: U.S. Bureau of Mines Open File Report 57-79, 74 p.

Reference (Deposit): Cobb, E. H., 1976, Summary of references to mineral occurrences (other than mineral fuels and construction materials) in the Circle quadrangle, Alaska: U. S. Geological Survey Open-File Report 76-633, 72 p.

Reference (Deposit): Eberlein, G. D., Chapman, R. M., Foster, H. L., and Gassaway, J. S., 1977, Map and table describing known metalliferous and selected nonmetalliferous mineral deposits in central Alaska: U.S. Geological Survey Open File Report 77-168D, 132 p.

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