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Leroy

Past Producer in Alaska, United States with commodities Cadmium, Copper, Gold, Lead, Silver, Zinc
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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. Workings at the site
  17. Links to other databases
  18. Bibliographic references
  19. Reporter information

Geologic information

Identification information

Deposit ID 10185346
MRDS ID A013150
MAS/MILS ID 0021110023
Record type Site
Current site name Leroy
Alternate or previous names Lincoln, Leroy No. 1-2, Mt. Parker Mine, Leroy Quartz, Toots, Tunnel Sites Nos. 1-4
Related records 10002248

Geographic coordinates

Point of reference Claim
Geographic coordinates: -136.88882, 58.87532 (WGS84)
Elevation 300
Location accuracy 100(meters)

Site location context

Political divisions (FIPS codes)

Hoonah-Angoon(Census area)

Alaska(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Mount Fairweather D-3(quadrangle 1:63,360 scale)

Mount Fairweather NE(quadrangle 1:100,000 scale)

Mount Fairweather(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Glacier Bay(hydrologic unit)

Northern Southeast Alaska(hydrologic accounting unit)

Southeast Alaska(hydrologic subregion)

Alaska(hydrologic region)

Federal lands

Glacier Bay National Park(National Park)

National Park NPS(Type of land area)

NPS(Federal land areas administered by NPS)

Geographic areas

Country State
United States Alaska

Public Land Survey System information

Meridian Township Range Section Fraction State
Copper River 034 S 051 E 34 C NESE Alaska

Commodities

Commodity Importance
Cadmium Tertiary
Copper Tertiary
Gold Primary
Lead Tertiary
Silver Tertiary
Zinc Critical Tertiary

Materials information

Materials Type of material
Calcite Unknown
Chalcopyrite Unknown
Feldspar Unknown
Galena Unknown
Gold Unknown
Pyrite Unknown
Quartz Unknown
Smaltite Unknown

Nearby scientific data

Claim (1) -136.88882, 58.87532
ListMap

Economic information

Ore body information

  • Strike S30W
    Dip 75W
    Thickness 1M
    Length 100M
    Width 75M
    Area 16HA
    Depth to top 0M
    Field Value
    Type of Orebody #1 FISSURE VEIN
    Shape of Orebody #1 TABULAR
    Primary mode of Origin HYDROTHERMAL
    Primary Ore Control FRACTURING
    Degree of Wallrock Alter. SLIGHT
    Type of Wallrock Alter. #1 UNKNOWN
    Strike And Dip S30W:75W
    Minimum Depth to Top 0
    Avg. Thick. Unconsol. Mat. 0
    Min. Thick. Unconsol. Mat. 0
    Total Surface Area (HA) 16
    Date of Last Modification 830321

Economic information about the deposit and operations

Operation type Underground
Development status Past Producer
Commodity type Metallic
Deposit size Small
Significant No
Discovery year 1938
Year of first production 1941

Mining district

District name Juneau District

Mineral rights holdings

Type of mineral rights Located Claim

Land status

Ownership category National Wilderness

Ownership information

  • Type Owner-Operator
    Owner Parker, A. F.
    Interest 50
    Home office Alaska
    Year 1975
  • Type Owner-Operator
    Owner Jennie Trump
    Interest 50
    Home office Alaska
    Year 1975

Production statistics

  • Year 1939
    Description Production Reported Crush, Amal, Smelt 7 Pounds Lead
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Trace Lead Lead 3.17mt
  • Year 1939
    Description Production Reported Crush, Amal & Smelt 3 Pounds Copper
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Trace Copper Copper 1.36mt
  • Year 1939
    Description Production Reported Crush, Amal & Smelt 4 Troy Ounces Silver
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Trace Silver Silver 124.41g
  • Year 1939
    Description Production Reported Crush, Amal & Smelt 10 Troy Ounces Gold
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Major Gold Gold 311.03g
  • Year 1940
    Description Production Reported Crush & Smelt 2 Ounces Silver
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Trace Silver Silver 62.2g
  • Year 1940
    Description Production Reported Crush & Smelt 7 Ounces Gold
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Major Gold Gold 217.72g
  • Year 1940
    Description Production Reported Crush & Smelt 7 Pounds Lead8
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Trace Lead Lead 0mt
  • Year 1941
    Description Production Reported Am, Flo, Conc & Sm 526 Pounds Lead
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Trace Lead Lead 238.58mt
  • Year 1941
    Description Production Reported Am, Flo, Conc & Sm 208 Troy Ounces Gold
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Major Gold Gold 6469.52g
  • Year 1941
    Description Production Reported Am, Flo, Conc & Sm 6 Pounds Copper
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Trace Copper Copper 2.72mt
  • Year 1941
    Description Production Reported Am, Flom Conc & Sm 76 Troy Ounces Silver
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Trace Silver Silver 2363.86g
  • Year 1942
    Description Production Reported 59 Pounds Copper
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Trace Copper Copper 26.76mt
  • Year 1942
    Description Production Reported 5140 Pounds Lead
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Trace Lead Lead 2331.46mt
  • Year 1942
    Description Production Reported 823 Troy Ounces Silver
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Trace Silver Silver 25598.16g
  • Year 1942
    Description Production Reported 2684 Troy Ounces Gold
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Major Gold Gold 83481.74g
  • Year 1943
    Description Production Reported 23 Troy Ounces Gold
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Major Gold Gold 715.38g
  • Year 1943
    Description Production Reported 10 Troy Ounces Silver
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Trace Silver Silver 311.03g
  • Year 1943
    Description Production Reported 21 Troy Ounces Copper
  • Year 1944
    Description Production Reported 519 Troy Ounces Gold
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Major Gold Gold 16142.7g
  • Year 1944
    Description Production Reported 876 Pounds Lead
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Trace Lead Lead 397.34mt
  • Year 1944
    Description Production Reported 170 Troy Ounces Silver
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Trace Silver Silver 5287.59g
  • Year 1945
    Description Production Reported 721 Troy Ounces Gold
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Major Gold Gold 22425.6g
  • Year 1945
    Description Production Reported 265 Troy Ounces Silver
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Trace Silver Silver 8242.42g
  • Year 1947
    Description Mill Cleanup 15 Troy Ounces Gold
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Major Gold Gold 466.55g
  • Year 1947
    Description Mill Cleanup 6 Troy Ounces Silver
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Trace Silver Silver 186.62g
  • Year 1948
    Description Production Reported 44 Troy Ounces Silver
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Trace Silver Silver 1368.55g
  • Year 1948
    Description Production Reported 100 Troy Ounces Gold
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Major Gold Gold 3110.34g
  • Year 1949
    Description Production Reported 271 Pounds Zinc
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Trace Zinc Zinc 122.92mt
  • Year 1949
    Description Production Reported 4 Pounds Copper
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Trace Copper Copper 1.81mt
  • Year 1949
    Description Production Reported 34 Pounds Lead
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Trace Lead Lead 15.42mt
  • Year 1949
    Description Production Reported 192 Troy Ounces Silver
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Trace Silver Silver 5971.86g
  • Year 1949
    Description Production Reported 391 Troy Ounces Gold
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Major Gold Gold 12161.46g
  • Year 1950
    Description Production Reported 4 Pounds Copper
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Trace Copper Copper 1.81mt
  • Year 1950
    Description Production Reported 41 Troy Ounces Gold
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Major Gold Gold 1275.24g
  • Year 1950
    Description Production Reported 450 Pounds Lead
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Trace Lead Lead 204.11mt
  • Year 1950
    Description Production Reported 166 Troy Ounces Silver
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Trace Silver Silver 5163.17g
  • Year 1950
    Description Production Reported 352 Pounds Gold
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Major Gold Gold 10948.42g
  • Year 1951
    Description Production Reported 710 Troy Ounces Silver
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Trace Silver Silver 22083.47g

Comments on the production information

  • $100,000 (2,857 FINE OZ.) AU HAS BEEN PRODUCED FROM LEROY. SAMPLES IN PPM CONTAINED UP TO 355 AU, 255 AG. 70,000 AS, 1,000 CD, 70 CU, 1,500 PB, & 15,000 ZN. PAST PRODUCTION RECORDS MAY INCLUDE RAINBOW & INCAS.

Workings at the site

  • Type of workings Underground
    Length 200M
    Field Value
    MAS Development Schedule # 1
    Mining Record # 1
    Status of Mining Method PROPOSED
    Mining Method UNDERHAND 10-35
    Percent Waste Rock 75
    Hardness of Rock HARDROCK FISSURED WITH MODERATE WATER
    Rock Support Chars. SUPPORTING MAY BACK SLAB
    Mine Support Chars. POST, HEADBOARD, CAPS, ROOF BOLTS
    Avg. Length of Adits (m) 80
    Number of Adits 4
    1st Condition of Workings PART ACCESSIBLE
    Capacity 50
    Capacity Units MT ORE/DAY
    Unit Production Cost 10.07
    Units of Production $/MT ORE
    Operating Days per Year 250
    Operating Shifts per Day 1
    Year of Information 1975

Reference information

Bibliographic references

  • Ownership

    ALASKA KARDEX 111-002

  • Deposit

    PE111-2 pp. 3-5

  • Deposit

    B933A p. 17

  • Deposit

    B963A pp. 32-34

  • Deposit

    PE111-4

  • Deposit

    PE111-5

  • Deposit

    B1058B pp. 37-39, 42, 45-46

  • Deposit

    B1246 p. 160

  • Deposit

    P632 pp. 53, 55-59

  • Deposit

    OF78-316 pp. 30-31

  • Deposit

    OF78-494 pp. C195-C207

  • Deposit

    OF81-122

  • Deposit

    MTA 82 No. F-8

Reporter information

Type Date Name Affiliation Comment
Reporter 12-FEB-1988 Sbh U.S. Bureau of Mines

Beyond USGS

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

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.