The Lost Lake is a lead, zinc, silver, gold, and barium-barite 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
Elevation:
Commodity: Lead, Zinc, Silver, Gold, Barium-Barite
Lat, Long: 56.57278, -133.05778
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.
Lost Lake MRDS details
Site Name
Primary: Lost Lake
Commodity
Primary: Lead
Primary: Zinc
Primary: Silver
Primary: Gold
Primary: Barium-Barite
Location
State: Alaska
District: Petersburg
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: N
Physiography
Not available
Mineral Deposit Model
Model Name: Quartz pebble conglomerate Au-U (BC name is Paleoplacer U-Au-PGE-Sn-Ti
Orebody
Form: SEE DEPOSIT DESCRIPTION COMMENTS
Structure
Not available
Alterations
Not available
Rocks
Not available
Analytical Data
Not available
Materials
Not available
Comments
Comment (Reserve-Resource): THIS IS PROBABLY WESTMIN'S 'LOST SHOW' DEPOSIT ON WOEWODSKI ISLAND THAT WESTMIN DESCRIBED IN 1997 ON THE INTERNET AT HTTP://WESTMIN-RESOURCES.COM/EXPLORE.HTML AS CONTAINING 'A GEOLOGIC RESERVE OF APPROXIMATELY 500,000 TONNES GRADING 8.1% ZINC, 0.6% LEAD AND 77.76 G/T SILVER'.
Comment (Production): NONE
Comment (Location): KNOWN TO WITHIN 100 YARDS AND EASILY LOCATED. THE DEPOSIT IS ON THE NORTH BANK OF THE SMALL LAKE, LOCALLY NAMED 'LOST LAKE' ON NORTHWESTERN WOEWODSKI ISLAND (LAKE '175' ON THE USGS 1:63,360-SCALE TOPOGRAPHIC MAP). THE DEPOSIT IS ABOUT 25 FEET NORTH OF THE LAKE; IT EXTENDS EXTENDS EAST AND WEST OF A SMALL CREEK THAT FLOWS TO THE NORTH FROM ABOUT THE CENTER OF THE LAKE. DRILLING PADS AND LANDING SITES WERE STILL VISIBLE IN 1996 AT THE PROSPECT.
Comment (Geology): PROBABLY TRIASSIC BASED ON GEOCHEMISTRY OF HOST ROCKS (NEWBERRY AND BREW, 1997), AND THE DEPOSIT'S SIMILARITY TO OTHER DEPOSITS IN THE TRIASSIC, DUNCAN CANAL-ZAREMBO BELT OF MASSIVE SULFIDE DEPOSITS DEFINED BY BERG AND GRYBECK (1980) AND BERG (1981).
Comment (Workings): FOUND IN LATE 1980'S AND EXPLORED OR EXAMINED BY A NUMBER OF COMPANIES SINCE; IN 1996 HELD BY WESTMIN RESOURCES LIMITED, WHICH HAS OTHER PROPERTIES ON WOEWODSKI ISLAND. THE MASSIVE SULFIDE LAYER IS COVERED BY ONLY A THIN LAYER OF VEGETATION, AND HAS BEEN SAMPLED BY SEVERAL SHALLOW PITS. SEVERAL DRILLING SITES WERE OBVIOUS AT THE PROSPECT IN 1996 AND AT LEAST 18 HOLES ARE SAID TO HAVE BEEN DRILLED.
Comment (Deposit): A RESISTANT LAYER OF CREAM- TO LIGHT-GRAY COLORED SCHIST ABOUT 10 FEET THICK DAMS IN THE NORTH SIDE OF THE LAKE AT THE PROSPECT. THE FOLIATION STRIKES ABOUT N80E TO S75E, I.E., ROUGHLY PARALLEL TO THE NORTH SIDE OF THE LAKE, AND DIPS ABOUT 70-85 S. THE SCHIST CONTAINS AT LEAST TWO LAYERS OF MASSIVE SULFIDES 8 INCHES TO 16 INCHES THICK THAT CONSIST MAINLY OF SPHALERITE WITH MODERATE AMOUNTS OF PYRITE AND SPARSE GALENA (UNPUBLISHED FIELD NOTES BY D. GRYBECK, 1996). ANALYSES OF A NUMBER OF SAMPLES OF SIMILAR(?) SCHIST SAMPLED NEARLY BY NEWBERRY AND BREW (1989) INDICATE THAT: 1) THE SCHIST IS DERIVED FROM BASALTIC PROTOLITHS AND WERE PROBABLY SUBSEQUENTLY ALTERED, 2) THE SCHIST IS GEOCHEMICALLY ANALOGOUS TO SAMPLES FROM THE GREENS CREEK MINE ON ADMIRALTY ISLAND; AND 3) THE DEPOSIT IS PROBABLY TRIASSIC IN AGE.
Comment (Exploration): Status = Active
References
Not available
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.
