Slope Creek

Past Producer in Alaska, United States with commodities Gold, Silver, Copper, Bismuth

Geologic information

Identification information

Deposit ID 10000784
MRDS ID A011427
Record type Site
Current site name Slope Creek
Related records 10161251

Geographic coordinates

Geographic coordinates: -143.99652, 62.78857 (WGS84)
Relative position Best location: Richter, 1966, ADGGS GR 21, fig.5, loc. 11; Tributary to Porcupine Creek a tributary to Slana River. Accurate within 500 ft radius
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Geographic areas

Country State
United States Alaska


Commodity Importance
Gold Primary
Silver Secondary
Copper Secondary
Bismuth Secondary

Comments on the commodity information

  • Gangue = In concentrates: magnetite
  • Ore Material = unknown Bi mineral)
  • Ore Material = unknown Bi mineral

Materials information

Materials Type of material
Copper Ore
Gold Ore
Silver Ore
Ilmenite Gangue
Pyrite Gangue

Nearby scientific data

(1) -143.99652, 62.78857

Comments on the geologic information

  • Geologic Description = No data on size or grade of deposit, but it was probably very small; placer deposits probably associated with mafic diorite-quartz diorite complex

Economic information

Economic information about the deposit and operations

Development status Past Producer
Commodity type Metallic

Comments on exploration

  • Status = Inactive

Mining district

District name Chistochina; Porcupine Creek

Comments on the workings information

  • Workings / Exploration = Type of workings: surface

Reference information

Links to other databases

Agency Database name Acronym Record ID Notes
USGS Mineral Resources Data System MRDS A011427
USGS Alaska Resource Data File ARDF NB001

Bibliographic references

  • Deposit

    Moffit, F.H., 1938, Geology of the Slana-Tok district, Alaska: U.S. Geological Survey Bulletin 904, 54 p.

  • Deposit

    Moffit, F.H., 1944, Mining in the northern Copper River region, Alaska: U.S. Geological Survey Bulletin 943, p. 25-47.

  • Deposit

    Moffit, F.H., 1954, Geology of the eastern part of the Alaska Range and adjacent area: U.S. Geological Survey Bulletin 989-D, p. 63-218.

  • Deposit

    Richter, D.H., and Matson, N.A., 1968, Distribution of gold and some base metals in the Slana area, eastern Alaska Range, Alaska: U.S. Geological Survey Circular 593, 20 p.

  • Deposit

    Richter, D.H., 1964, Geology and mineral deposits of the Ahtell Creek area, Slana District, south-central Alaska: Alaska Division of Geological and Geophysical Surveys Geologic Report 6, 17 p., 1 sheet, scale 1:31,680.

  • Deposit

    Richter, D.H., 1966, Geology of the Slana district on south-central Alaska: Alaska Division of Geological and Geophysical Surveys Geological Report 2l, 36b p., 3 sheets, scale 1:63,360.

  • Deposit

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

  • Deposit

    Richter, D.H., Singer, D.A., and Cox, D.P., 1975, Mineral resources map of the Nabesna quadrangle, Alaska: U.S. Geological Survey Miscellaneous Field Studies Map MF-655-K, scale 1:250,000.

  • Deposit

    Moffit, F.H., 1938, Geology of the Slana-Tok district, Alaska: U.S. Geological Survey Bulletin 904 54 p.

Comments on the references

  • Primary Reference = Moffit, 1944, USGS B 943-B

General comments

Subject category Comment text
Deposit Model Name = Placer
Deposit Other Comments = Some confusion exists in the literature in distinguishing between Slope Cr. and Boulder Cr. It is likely that most data probably refers to both. The mine symbol for Boulder Cr. on fig. 5 of ADGGS GR 21 is in the Gulkana quad.

Reporter information

Type Date Name Affiliation Comment
Reporter 06-FEB-1997 Leonard, K.R. U.S. Geological Survey
Reporter 06-FEB-1997 Elliott, R.L. U.S. Geological Survey
Reporter 06-FEB-1997 Richter, D.H. U.S. Geological Survey