The Bear Creeks 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
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.
Bear Creeks MRDS details
Site Name
Primary: Bear Creeks
Secondary: Bear Creek
Commodity
Primary: Gold
Location
State: Alaska
District: Yentna
Land Status
Not available
Holdings
Not available
Workings
Not available
Ownership
Not available
Production
Not available
Deposit
Record Type: Site
Operation Category: Prospect
Operation Type: Unknown
Years of Production:
Organization:
Significant:
Physiography
Not available
Mineral Deposit Model
Model Name: Placer Au-PGE
Orebody
Not available
Structure
Not available
Alterations
Alteration Type: L
Alteration Text: Hydrothermal alteration is reported by C. C. Hawley and Associates, Inc. (1978) at this site. No detailed description of alteration mineralogy is given.
Rocks
Not available
Analytical Data
Not available
Materials
Ore: Gold
Comments
Comment (Geology): Geologic Description = Bench placer of Pleistocene (and older?) unconsolidated sediments (Smith, 1930) overlie bedrock of Mesozoic graywacke and argillite (KJs, Reed and Nelson, 1980). Hydrothermal alteration of the bedrock at head of creek is reported by Hawley C.C. and Associates, Inc. (1978). Hawley and Clark (1973, Plate 1) show the Dutch Creek lineament extending down Bear Creek. This feature represents one of the steeply dipping normal faults that Hawley and Clark (1973) suggest are controlling features for placer gold in the Yentna district. Reed and others (1978) report post-1970 mining activity on Bear Creek. ? Reed and others (1978) indicate that hydrothermally altered zones similar to those at the headwaters of Bear Creek are observed along Dollar (TL031) and Thunder Creeks (TL032, TL058), at the headwaters of Treasure (TL030) and Dutch (TL033) Creeks and at an unnamed locality east of McDoel Peak (TL053).
Comment (Geology): Age = Pleistocene.
Comment (Deposit): Model Name = Placer Au-PGE (Cox and Singer, 1986; model 39a).
Comment (Workings): Workings / Exploration = The drainage has been prospected and mined by various surface methods including hand mining and dozer/sluice operations. Reed and others (1978) reported post-1970 mining activity. Current status is unknown.
Comment (Reference): Primary Reference = Smith, 1930
References
Reference (Deposit): C.C. Hawley and Associates, Inc., 1978, Mineral appraisal of lands adjacent to Mt. McKinley National Park, Alaska: U.S. Bureau of Mines Open-File Report 24-78, 275 p., 7 plates.
Reference (Deposit): Smith, P.S., 1930, Mineral industry of Alaska in 1927: U.S. Geological Survey Bulletin 810-A, p. 1-64.
Reference (Deposit): Hawley, C.C., and Clark, A.L., 1973, Geology and mineral deposits of the upper Chulitna district, Alaska: U.S. Geological Survey Professional Paper 758-A, p. 1-10, 2 sheets, scale 1:250,000 and 1:500,000.
Reference (Deposit): Reed, B.L., and Nelson, S.W., 1980, Geologic map of the Talkeetna quadrangle: U.S. Geological Survey Miscellaneous Investigations Map I-1174, scale 1:250,000.
Reference (Deposit): Cobb, E.H., and Reed, B.L., 1980, Summaries of data and lists of reference to metallic and selected nonmetallic mineral deposits in the Talkeetna quadrangle, Alaska: U.S. Geological Survey Open-File Report 80-884, 106 p.
Reference (Deposit): Reed, B.L., Nelson, S.W., Curtin, G.C., and Singer, D.A., 1978, Mineral resources map of the Talkeetna Quadrangle, Alaska: U.S. Geological Survey Miscellaneous Field Studies Map MF-870-D, 1 sheet, scale 1:250,000.
The Top Ten Gold Producing States
These ten states contributed the most to the gold production that built the West from 1848 through the 1930s. The Top Ten Gold Producing States.
