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  3. Mineral Resource Data System (MRDS)

Cape Mountain Placer

Past Producer in Alaska, United States with commodity Tin
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Sections on this page
  1. Identification information
  2. Geographic coordinates
  3. Site location context
  4. Geographic areas
  5. Public Land Survey System information
  6. Commodities
  7. Materials information
  8. Nearby scientific data
  9. Ore body information
  10. Economic information about the deposit and operations
  11. Mining district
  12. Mineral rights holdings
  13. Land status
  14. Ownership information
  15. Production statistics
  16. Reserves and resources
  17. Workings at the site
  18. Links to other databases
  19. Bibliographic references
  20. General comments
  21. Reporter information

Geologic information

Identification information

Deposit ID 10233015
MRDS ID A003626
MAS/MILS ID 0020430002
Record type Site
Current site name Cape Mountain Placer
Alternate or previous names Cape Creek, Tin City, First Chance Creek, East Fork, Goodwin Creek, Granite Creek, Village Creek, Lagoon Creek, American Tinfields, Inc., Lomen Commercial Co., Ralph Lomen, H.G. Gabrielson, John & Diane Cothern, Roy Snow, Otto O. Oetjen, Frank Ralston, Goodwin Gulch, Zenda Gold Mining Co., Mrs. T.A. Petersen, Glenn Adams, Boulder Creek

Geographic coordinates

Point of reference Ore Body
Geographic coordinates: -167.93123, 65.57285 (WGS84)
Elevation 43
Location accuracy 100(meters)

Site location context

Political divisions (FIPS codes)

Nome(Census area)

Alaska(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Teller C-6(quadrangle 1:63,360 scale)

Teller NE(quadrangle 1:100,000 scale)

Teller(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Imuruk Basin(hydrologic unit)

Norton Sound(hydrologic accounting unit)

Northwest(hydrologic subregion)

Alaska(hydrologic region)

Geographic areas

Country State
United States Alaska

Public Land Survey System information

Meridian Township Range Section Fraction State
Kateel River 002 N 045 W 13 NWNWSE Alaska

Commodities

Commodity Importance
Tin Critical Primary

Materials information

Materials Type of material
Albite Unknown
Apatite Unknown
Augite Unknown
Biotite Unknown
Calcite Unknown
Cassiterite Unknown
Chlorite Unknown
Diopside Unknown
Dolomite Unknown
Epidote Unknown
Feldspar Unknown
Forsterite Unknown
Garnet Unknown
Glaucophane Unknown
Goethite Unknown
Hematite Unknown
Hornblende Unknown
Hypersthene Unknown
Limonite Unknown
Magnetite Unknown
Microcline Unknown
Monazite Unknown
Olivine Unknown
Orthoclase Unknown
Ottrelite Unknown
Pyrite Unknown
Quartz Unknown
Rutile Unknown
Scheelite Unknown
Sphene Unknown
Staurolite Unknown
Tourmaline Unknown
Vesuvianite Unknown
Zircon Unknown
Zoisite Unknown

Nearby scientific data

Ore Body (1) -167.93123, 65.57285
ListMap

Economic information

Ore body information

  • Thickness 8M
    Length 3000M
    Width 80M
    Area 40HA
    Depth to top 8.5M
    Field Value
    Type of Orebody #1 PLACER
    Shape of Orebody #1 IRREGULAR
    Primary mode of Origin SEDIMENTATION
    Secondary mode of Origin SEDIMENTATION
    Primary Ore Control LITHOLOGY
    Secondary Ore Control BEDDING
    Degree of Wallrock Alter. NONE
    Minimum Depth to Top 0
    Avg. Thick. Unconsol. Mat. 8.5
    Min. Thick. Unconsol. Mat. 0
    Total Surface Area (HA) 40
    Date of Last Modification 880212

Economic information about the deposit and operations

Operation type Placer
Development status Past Producer
Commodity type Metallic
Significant Yes
Discovery year 1903
Year of first production 1924

Mining district

District name Port Clarence District

Mineral rights holdings

Type of mineral rights Located Claim

Land status

Ownership category BLM Administrative Area

Ownership information

  • Type Owner
    Owner Lost River Mining Co.
    ID 5001439
    Interest 12
    Home office Alaska
    Year 1988
  • Type Owner
    Owner Len Grothe
    ID 5001439
    Interest 75
    Home office Alaska
    Year 1988

Production statistics

  • Year 1924
    Description Goodwin Gulch 4 Short Tons Commodity
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Major Tin Tin 4.4mt
  • Year 1925
    Description Goodwin Gulch 9 Short Tons Commodity
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Major Tin Tin 9.92mt
  • Year 1926
    Description Goodwin Gulch 7 Short Tons Commodity
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Major Tin Tin 7.71mt
  • Year 1927
    Description Goodwin Gulch 14 Short Tons Commodity
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Major Tin Tin 15.43mt
  • Year 1928
    Description Goodwin Gulch And Cape Creek 38 Short Tons Commodity
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Major Tin Tin 41.88mt
  • Year 1929
    Description Goodwin Gulch And Cape Creek 36 Short Tons Commodity
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Major Tin Tin 39.68mt
  • Year 1930
    Description Godwin Gulch And Cape Creek 10 Short Tons Commodity
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Major Tin Tin 11.02mt
  • Year 1931
    Description Goodwin Gulch 3 Short Tons Commodity
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Major Tin Tin 3.3mt
  • Year 1933
    Description Goodwin Gulch (?) 2 Short Tons Commodity
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Major Tin Tin 2.2mt
  • Year 1934
    Description Goodwin Gulch (?) 4 Short Tons Commodity
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Major Tin Tin 4.4mt
  • Year 1935
    Description Cape Creek And Goodwin Gulch 46 Short Tons Commodity
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Major Tin Tin 50.7mt
  • Year 1936
    Description Cape Creek And Goodwin Gulch 99 Short Tons Commodity
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Major Tin Tin 109.12mt
  • Year 1937
    Description Cape Creek And Goodwin Gulch 154 Short Tons Commodity
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Major Tin Tin 169.75mt
  • Year 1938
    Description Cape Creek 105 Short Tons Commodity
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Major Tin Tin 115.74mt
  • Year 1939
    Description Cape Creek And Goodwin Gulch 25 Short Tons Commodity
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Major Tin Tin 27.55mt
  • Year 1940
    Description Cape Creek 43 Short Tons Commodity
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Major Tin Tin 47.39mt
  • Year 1941
    Description Cape Creek 49 Short Tons Commodity
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Major Tin Tin 54.01mt
  • Year 1964
    Description Grothe & Pearson 5000 Pounds Commodity
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Major Tin Tin 2267.96mt
  • Year 1965
    Description Grothe & Pearson 15600 Pounds Commodity
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Major Tin Tin 7076.04mt
  • Year 1966
    Description Lee Bros. - Cape Creek 63075 Pounds Commodity
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Major Tin Tin 28610.33mt
  • Year 1967
    Description Lee Bros. - Cape Creek 18000 Pounds Commodity
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Major Tin Tin 8164.66mt
  • Year 1971
    Description Lee Bros. 37944 Pounds Commodity
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Major Tin Tin 17211.1mt
  • Year 1972
    Description Lee Bros. - Tin City 42560 Pounds Commodity
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Major Tin Tin 19304.89mt
  • Year 1973
    Description Lee Bros. - Tin City 10000 Pounds Commodity
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Major Tin Tin 4535.92mt
  • Year 1974
    Description Lee Bros. - Tin City 8900 Pounds Commodity
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Major Tin Tin 4036.97mt
  • Year 1975
    Description Lee Bros. - Tin City 24640 Pounds Commodity
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Major Tin Tin 11176.51mt
  • Year 1979
    Description Grothe & Pearson - Cape Creek 200000 Pounds Concentrate
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Major Tin Tin 90718.47mt
  • Year 1979
    Description Lee Bros. - Cape Creek 2000 Pounds Concentrate
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Major Tin Tin 907.18mt
  • Year 1980
    Description Grothe & Pearson 192000 Pounds Concentrate
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Major Tin Tin 87089.73mt

Reserves and resources

  • Type In-situ
    Estimate year 1943
    Inferred 285550mt ore
    Total resources 285550mt ore
    Commodity Subtype Grade units Group Importance Year
    Tin Sn 0.132 wt-pct Tin Major 1943
  • Type In-situ
    Estimate year 1945
    Indicated 448060mt ore
    Demonstrated 448060mt ore
    Total resources 448060mt ore
    Commodity Subtype Grade units Group Importance Year
    Tin Sn 0.0683 wt-pct Tin Major 1945
  • Type In-situ
    Estimate year 1945
    Indicated 80100mt ore
    Demonstrated 80100mt ore
    Total resources 80100mt ore
    Commodity Subtype Grade units Group Importance Year
    Tin Sn 0.0101 wt-pct Tin Major 1945
  • Type In-situ
    Estimate year 1957
    Indicated 2027100mt ore
    Demonstrated 2027100mt ore
    Total resources 2027100mt ore
    Commodity Subtype Grade units Group Importance Year
    Tin Sn 0.1061 wt-pct Tin Major 1957

Workings at the site

  • Type of workings Surface
    Area 30HA
    Field Value
    MAS Development Schedule # 1
    Mining Record # 1
    Status of Mining Method PROPOSED
    Mining Method ALLUVIAL MINING
    Percent Waste Rock 28
    Avg. Overburden Thickness 8.5
    Primary Material Cover SAND, GRAVEL
    Hardness of Ore SAND, GRAVEL
    Avg. Bench Height (meters) 8
    Max. Pit Slope (degrees) 30
    Capacity 1958
    Capacity Units CU-M ORE/DAY
    Preprod. Stripping Vol. 120
    Unit Production Cost 7
    Units of Production $/CU-M ORE
    Operating Days per Year 120
    Operating Shifts per Day 2
    Year of Information 1981

Reference information

Bibliographic references

General comments

Subject category Comment text
Deposit USGS CRIB A003645 USGS CRIB A003644 USGS CRIB A003668 USGS CRIB A003683 USGS CRIB A003618 USGS CRIB A003642 USGS CRIB D002547 USGS CRIB W000009 MSHA ID 5000475

Reporter information

Type Date Name Affiliation Comment
Reporter 17-FEB-1995 Dwb U.S. Bureau of Mines

Beyond USGS

Supplemental information added by qvyshift.com. Not part of the original USGS MRDS record.

Current status (per MSHA)

StatusAbandoned since 08/15/1990
MSHA mine ID5001439
Mine name (MSHA)Cape Creek
Current operatorLost River Mining
Current controller (parent)Grothe Len
Mine typeSurface (Metal / non-metal)

MSHA cross-reference per the original MRDS record. Mine status and operator reflect MSHA's last published Mines export (February 2025); MSHA's public bulk feed has been unavailable since, so this may be out of date. See the Mine Data Retrieval System for current status.

Open MSHA's Mine Data Retrieval System for inspections, accidents, and violations for this mine.

Maps centered on this site

Authoritative Alaska resources

These are landing pages for further research — the state agencies don't currently expose per-mine deep links.