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Crawhall

Past Producer in Lafayette county in Wisconsin, United States with commodities Lead, Zinc
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Warning: This record lacks important information: bibliographic references, which we consider necessary for a comprehensive report.
Sections on this page
  1. Identification information
  2. Geographic coordinates
  3. Site location context
  4. Geographic areas
  5. Commodities
  6. Materials information
  7. Nearby scientific data
  8. Ore body information
  9. Economic information about the deposit and operations
  10. Mining district
  11. Mineral rights holdings
  12. Land status
  13. Ownership information
  14. Production statistics
  15. Workings at the site
  16. Links to other databases
  17. General comments
  18. Reporter information

Geologic information

Identification information

Deposit ID 10253979
MRDS ID W800009
MAS/MILS ID 0550650208
Record type Site
Current site name Crawhall
Alternate or previous names Crawhall Mine
Related records 10086159

Geographic coordinates

Point of reference Main Entrance
Geographic coordinates: -90.30821, 42.53171 (WGS84)
Elevation 274
Location accuracy 100(meters)

Site location context

Political divisions (FIPS codes)

Lafayette(county)

Wisconsin(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

New Diggings(quadrangle 1:24,000 scale)

Dubuque North(quadrangle 1:100,000 scale)

Dubuque(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Apple-Plum(hydrologic unit)

Upper Mississippi-Maquoketa-Plum(hydrologic accounting unit)

Upper Mississippi-Maquoketa-Plum(hydrologic subregion)

Upper Mississippi(hydrologic region)

Geographic areas

Country State County
United States Wisconsin Lafayette

Commodities

Commodity Importance
Lead Secondary
Zinc Critical Primary

Materials information

Materials Type of material
Barite Unknown
Galena Unknown
Marcasite Unknown
Pyrite Unknown
Sphalerite Unknown

Nearby scientific data

Main Entrance (1) -90.30821, 42.53171
ListMap

Economic information

Ore body information

  • Thickness 12M
    Length 610M
    Width 31M
    Depth to top 69M
    Field Value
    MAS Matrix # 1
    MAS Column # 1
    Type of Orebody #1 FISSURE VEIN
    Shape of Orebody #1 OTHER
    Type of Orebody #2 DISSEMINATED
    Primary mode of Origin HYDROTHERMAL
    Primary Ore Control FRACTURING
    Secondary Ore Control UNKNOWN
    Degree of Wallrock Alter. NONE
    Type of Wallrock Alter. #1 UNKNOWN
    Minimum Depth to Top 64
    Avg. Thick. Unconsol. Mat. 6
    Min. Thick. Unconsol. Mat. 6
    Date of Last Modification 790524
  • Area 53HA
    Field Value
    Total Surface Area (HA) 53
    Date of Last Modification 910418

Comments on the geologic information

  • ORE OCCURS IN PITCH AND FLAT STRUCTURES PITCH & FLAT STRUCTURES VARY IRREG. IN STRIKE & DIP

Economic information about the deposit and operations

Operation type Underground
Development status Past Producer
Commodity type Metallic
Significant Yes
Mining method Open Stope - Room and Pillar
Year of first production 1970
Milling method Flotation

Mining district

District name Upper Mississippi Valley

Mineral rights holdings

Type of mineral rights Fee Ownership
Type of mineral rights Private Lease

Land status

Ownership category Private

Ownership information

  • Type Owner
    Owner Terra Ind, Inc. P O Box 6000, Souix City, Ia 51102-6000
    Interest 100
    Home office Iowa
    Year 1993

Production statistics

  • Year 1970
    Description Ore 3.75%Zinc And 0.1% Lead 25600 Tonnes Ore
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Minor Ore Lead Lead 0wt-pct
    Major Ore Zinc Zinc 4wt-pct

Comments on the production information

  • ORE JIGGED THEN FLOATED PB ORE DISTRIBUTED TO OTHER EAGLE-PICHER OPERATIONS

Comments on the reserve resource information

  • RESERVES AND GRADES ESTIMATED FROM DATA REPORTED BY COMPANY OFFICIALS

Workings at the site

  • Type of workings Underground
    Overall depth 70M
    Field Value
    MAS Development Schedule # 1
    Mining Record # 1
    Status of Mining Method PROPOSED
    Mining Method ROOM AND PILLAR 10-34
    Percent Recovery 80
    Hardness of Rock SOFT NONPLASTIC FISSURED MODERATE WATER
    Rock Characteristics ONE SYSTEM OF WEAKNESS PLANES
    Rock Support Chars. SUPPORTING
    Mine Support Chars. POST, HEADBOARD, CAPS, ROOF BOLTS
    Number of Shafts 1
    Length of Inclines (m) 320
    Slope of Inclines 7
    Number of Inclines 1
    1st Condition of Workings PART ACCESSIBLE
    2nd Condition of Workings FLOODED
    Capacity 907
    Capacity Units MT ORE/DAY
    Unit Production Cost 9.26
    Units of Production $/MT ORE
    Operating Days per Year 250
    Operating Shifts per Day 2
    Year of Information 1978

Comments on the workings information

  • MINING DISTRICT IS UPPER MISS. VALLEY ZINC-LEAD DISTRICT AREA DISTURBED FOR ALL THE EAGLE-PICHER OPS.

Comments on other economic factors

  • ZN CONC SOLD TO BROKER, DIST. TO VARIOUS SMELTERS DISTANCES ASSUME HILLSBORO SMELTER (ASARCO) COST TYPICAL INDUSTRY COST, THIS COST USED IN MINSIM ANAL.

Reference information

General comments

Subject category Comment text
Deposit MINING OPERATIONS REVIEWED AND REVISED 9/78 AT E.F.O.C. BACKGROUND INFO. COLLECTED BY THE EVALUATORS FROM AVAILABLE LITERATURE AND PERSONNEL COMMICATION WITH COMPANY OFFICIALS THIS MINE IS BEING RECLAIMED BY TERRA IND IN 1993 AND AFTER RECLAMATION IS COMPLETED THE LAND WILL BE RETURNED TO THE STATE.

Reporter information

Type Date Name Affiliation Comment
Reporter 01-MAR-95 Wilburn, David R. U.S. Bureau of Mines

Beyond USGS

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

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