Lac La Belle Exploration

Past Producer in Keweenaw county in Michigan, United States with commodity Copper
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. Mineral occurrence model information
  9. Host and associated rocks
  10. Nearby scientific data
  11. Ore body information
  12. Controls for ore emplacement
  13. Economic information about the deposit and operations
  14. Mining district
  15. Ownership information
  16. Production statistics
  17. Workings at the site
  18. Bibliographic references
  19. General comments
  20. Reporter information

Geologic information

Identification information

Deposit ID 10082836
MRDS ID W062193
Record type Site
Current site name Lac La Belle Exploration

Geographic coordinates

Geographic coordinates: -87.80419, 47.42222 (WGS84)
Elevation 274
Location accuracy 100(meters)
Relative position ABOUT 1 MI NORTH OF HOAR LAKE.

Site location context

Political divisions (FIPS codes)

Keweenaw(county)

Michigan(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Fort Wilkins(quadrangle 1:24,000 scale)

Copper Harbor(quadrangle 1:100,000 scale)

Hancock(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Keweenaw Peninsula(hydrologic unit)

Southcentral Lake Superior(hydrologic accounting unit)

Southern Lake Superior(hydrologic subregion)

Great Lakes(hydrologic region)

Geographic areas

Country State County
United States Michigan Keweenaw

Public Land Survey System information

Meridian Township Range Section Fraction State
Michigan 058N 029W 13 Michigan

Comments on the location information

  • LOCATION IS FOR THE SHAFT ALONG THE MINERALIZED FISSURE SHOWN AT THIS SITE ON THE FORT WILKINS 1:24,000 SCALE MAP.

Commodities

Commodity Importance
Copper Primary

Comments on the commodity information

  • COPPER OCCURS IN OR ADJACENT TO THE FISSURES OR FAULTS AS DISSEMINATED GRAINS, AS THIN SHEETS ALONG CRACKS, OR AS MASSES WEIGHING UP TO HALF A TON.

Materials information

Materials Type of material
Copper Ore
Calcite Gangue
Prehnite Gangue
Quartz Gangue
Datolite Gangue
Laumontite Gangue
Epidote Gangue
Chlorite Gangue

Mineral occurrence model information

Model code 96
USGS model code Unassigned
Deposit model name Native Cu
Mark3 model number 99

Host and associated rocks

  • Host or associated Host
    Rock type Volcanic Rock (Aphanitic) > Mafic Volcanic Rock > Basalt
    Rock unit name Portage Lake Volcanics
    Rock description Portage Lake Volcanics
    Stratigraphic age (youngest) Stenian
    Chronological age 1095

Nearby scientific data

(1) -87.80419, 47.42222

Economic information

Ore body information

  • General form FISSURE

Controls for ore emplacement

  • Fissure

Comments on the geologic information

  • THE DEPOSIT IS LOCATED ALONG THE CONTACT BETWEEN THE GREENSTONE FLOW AND OTHER ROCKS OF THE PORTAGE LAKE VOLCANICS

Economic information about the deposit and operations

Operation type Surface-Underground
Development status Past Producer
Deposit size Small
Significant No
Discoverer Lac La Belle Co.
Year of first production 1850

Mining district

District name Keweenaw Copper

Ownership information

  • Type Owner
    Owner Lac La Belle Co.
    First year 1850
    Last year 1865
  • Type Owner
    Owner Mendota Mining Co.
    First year 1866

Production statistics

  • Year 1850
    Accuracy Accurate
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Major recovered Cu Copper Copper 1.59mt

Workings at the site

  • Type of workings Surface/Underground
    Overall depth 91.44M

Comments on the workings information

  • WORKING CONSIST OF THREE AND TRENCHES. THREE SHAFTS ARE SHOWN ON THE FORT WILKINS 1:24,000 GEOLOGIC MAP.

Reference information

Bibliographic references

  • Deposit

    BUTLER, B.S., AND BURBANK, W.S., 1929, THE COPPER DEPOSITS OF MICHIGAN: USGS PROF PAPER NO. 144, 238 PP.

  • Deposit

    ENGINEERING AND MINING JOURNAL, 1890, OCT. 18, P. 448.

  • Deposit

    CORNWALL, H. R., 1955, BEDROCK GEOLOGY OF THE FORT WILKINS QUADRANGLE, MICHIGAN: U.S. GEOLOGICAL SURVEY, GEOLOGIC QUADRANGLE MAPS OF THE UNITED STATES, GQ 74, 1:24,000.

  • Production

    BUTLER AND BURBANK, 1929

General comments

Subject category Comment text
Deposit MENDOTA MINING CO. TOOK OVER MINING OF THE PROPERTY IN 1866 AND SANK A 300 FT SHAFT HAVING 700 FT OF DRIFTING BEFORE OPERATIONS WERE SUSPENDED.

Reporter information

Type Date Name Affiliation Comment
Reporter 01-JAN-96 Sutphin, D.M. (Cannon, W.F.) U.S. Geological Survey
Updater 01-MAR-97 Sutphin, D.M. U.S. Geological Survey
Editor 01-MAY-97 Mason Jr., G.T. U.S. Geological Survey

Beyond USGS

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