Segregated Iron Hill

Past Producer in Lawrence county in South Dakota, United States with commodities Gold, Lead, Manganese, 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. 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. Workings at the site
  16. Links to other databases
  17. Bibliographic references
  18. General comments
  19. Reporter information

Geologic information

Identification information

Deposit ID 10250763
MAS/MILS ID 0460810056
Record type Site
Current site name Segregated Iron Hill

Geographic coordinates

Point of reference Main Entrance
Geographic coordinates: -103.85868, 44.39746 (WGS84)
Elevation 1734
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

Spearfish(quadrangle 1:24,000 scale)

Rapid City(quadrangle 1:100,000 scale)

Rapid City(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Redwater(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 005 N 002 E 15 S2SENE South Dakota

Commodities

Commodity Importance
Gold Tertiary
Lead Tertiary
Manganese Critical Tertiary
Silver Tertiary

Materials information

Materials Type of material
Cerargyrite Unknown
Cerussite Unknown
Galena Unknown
Gold Unknown
Hausmannite Unknown
Psilomelane Unknown
Rhodolite Unknown
Silver Unknown

Nearby scientific data

Main Entrance (1) -103.85868, 44.39746

Economic information

Ore body information

  • Strike N80W
    Dip 90N
    Area 259HA
    Depth to top 2M
    Field Value
    Shape of Orebody #1 TABULAR
    Shape of Orebody #2 IRREGULAR
    Primary mode of Origin CONT METASOMATIC
    Secondary mode of Origin HYDROTHERMAL
    Primary Ore Control FRACTURING
    Secondary Ore Control BEDDING
    Strike And Dip N80W:90N
    Minimum Depth to Top 0
    Avg. Thick. Unconsol. Mat. 0
    Min. Thick. Unconsol. Mat. 0
    Total Surface Area (HA) 259
    Date of Last Modification 780213

Economic information about the deposit and operations

Operation type Underground
Development status Past Producer
Commodity type Metallic
Significant No
Discovery year 1881
Year of first production 1882

Mining district

District name Carbonate District

Mineral rights holdings

Type of mineral rights Patented

Land status

Ownership category National Forest

Ownership information

  • Type Owner
    Owner Lillian Fillmore
    Interest 100
    Home office South Dakota
    Year 1976

Workings at the site

  • Type of workings Underground
    Field Value
    MAS Development Schedule # 1
    Mining Record # 1
    Status of Mining Method PROPOSED
    Mining Method TIMBERED STOPES
    Hardness of Rock HARDROCK FISSURED WITH MODERATE WATER
    Rock Characteristics MULTIPLE SYSTEMS OF WEAKNESS PLANES
    Capacity Units MT ORE/DAY
    Units of Production $/MT ORE
    Year of Information 1976

Reference information

Bibliographic references

  • Deposit

    SHAPIRO,LEWIS H AND GRIES JOHNP 1970 ORE DEPOSITS IN ROCKS O

  • Deposit

    ZOIC AND TERTIARV AGE OF THE NORTHERN BLACK HILLS SOUTH DAKO

  • Deposit

    GEOLOGICAL SURVEY HEAVEY METALS PROGRAM CONTRACT # 14-08-000

  • Deposit

    U S BUMINES BLACK HILLS MINERAL ATLAS S D PARTI US BUMINES

  • Deposit

    R # 7688 123P

  • Deposit

    FREDLUND DANIEL A 1974 POTENTIAL GOLD SILVER AND LEAD DEPOSI

  • Deposit

    HE CARBONATE AREA BLACK HILLS S DAKOTA A PRIVATE REPORT PREP

  • Deposit

    R DAKOTA MINERALS INC 15 P

  • Deposit

    GRIES JOHN P 197 DEVELOPM T OF THE IRON HILL AREA CARBONAT

  • Deposit

    ICT LAWRENCE COUNTY S DAKOTA A PRIVATE REPORT 8 P

General comments

Subject category Comment text
Deposit TONNAGE ESTIMATE AND GRADE FOR THIS MINE INCLUDED IN THE IRO MINE TONNAGE AND GRADE ESTIMATES, SEE MAS PROPERTY 46-08 HARD-COPY FILE CONTAINS FILE REPORT PLUS MAPS.

Reporter information

Type Date Name Affiliation Comment
Reporter 27-FEB-84 Baer, Roger L. U.S. Bureau of Mines

Beyond USGS

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

External references