Florence

Past Producer in Lawrence county in South Dakota, United States with commodities Lead, Silver
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. 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. Links to other databases
  15. Bibliographic references
  16. General comments
  17. Reporter information

Geologic information

Identification information

Deposit ID 10274896
MAS/MILS ID 0460810043
Record type Site
Current site name Florence

Geographic coordinates

Point of reference Main Entrance
Geographic coordinates: -103.63247, 44.33636 (WGS84)
Elevation 1463
Location accuracy 100(meters)

Site location context

Political divisions (FIPS codes)

Lawrence(county)

South Dakota(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Deadwood South(quadrangle 1:24,000 scale)

Rapid City(quadrangle 1:100,000 scale)

Rapid City(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Lower Belle Fourche(hydrologic unit)

Belle Fourche(hydrologic accounting unit)

Cheyenne(hydrologic subregion)

Missouri(hydrologic region)

Federal lands

Black Hills National Forest(National Forest)

National Forest FS(Type of land area)

FS(Federal land areas administered by FS)

Geographic areas

Country State County
United States South Dakota Lawrence

Public Land Survey System information

Meridian Township Range Section Fraction State
Black Hills 004 N 004 E 03 NENESW South Dakota

Commodities

Commodity Importance
Lead Tertiary
Silver Tertiary

Economic information

Ore body information

  • Strike N50E
    Dip 00S
    Thickness 1M
    Length 125M
    Width 2M
    Depth to top 50M
    Field Value
    Type of Orebody #1 SHEAR ZONE
    Shape of Orebody #1 LENTICULAR
    Type of Orebody #2 REPLACEMENT
    Shape of Orebody #2 TABULAR
    Type of Orebody #3 BRECCIA FILL
    Primary mode of Origin HYDROTHERMAL
    Secondary mode of Origin OXIDATION
    Primary Ore Control FRACTURING
    Secondary Ore Control BEDDING
    Degree of Wallrock Alter. SLIGHT
    Type of Wallrock Alter. #1 SERICITIC
    Type of Wallrock Alter. #2 SILICIFICATION
    Strike And Dip N50E:00S
    Minimum Depth to Top 0
    Avg. Thick. Unconsol. Mat. .5
    Min. Thick. Unconsol. Mat. 0
    Date of Last Modification 780213

Economic information about the deposit and operations

Operation type Underground
Development status Past Producer
Commodity type Metallic
Significant No

Mining district

District name Galena District

Mineral rights holdings

Type of mineral rights Patented
Type of mineral rights Unknown
Type of mineral rights Unknown

Land status

Ownership category Private

Ownership information

  • Type Owner
    Owner Double Rainbow Mines. Inc
    Interest 100
    Home office South Dakota
    Year 1975

Comments on the production information

  • Ingham (1882) claimed that the Florence was producing $25,000 worth of silver per month in about 1880 and that a silver brick weighing from 1,000 to 1,300 ounces was cast every other day.

Reference information

Bibliographic references

  • Deposit

    GRUNWALD,ROSS R 1970 GEOLOGY AND MINERAL DEPOSITS OF THE GAL

  • Deposit

    ING DISTRICT,BLACK HILLS,SOUTH DAKOTA: PH D TAESIS S DAKOTA

  • Deposit

    OF MINES AND TECHNOLOGY,323P

  • Deposit

    INGHAM, G T,1888,DIGGING GOLD AMOUNG THE ROCKIES:HUBBARD, PH

  • Deposit

    HIA,452 P

General comments

Subject category Comment text
Deposit HARD COPY FILE CONTAINS FILE REPORT PLUS MAPS.

Reporter information

Type Date Name Affiliation Comment
Reporter 25-NOV-83 South Dakota School of Mines U.S. Bureau of Mines

Beyond USGS

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

External references