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E C Mainprize Quarry and Mill

Producer in Oregon county in Missouri, United States with commodity Stone, Crushed/Broken
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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. Land status
  13. Ownership information
  14. Workings at the site
  15. Links to other databases
  16. Bibliographic references
  17. General comments
  18. Reporter information

Geologic information

Identification information

Deposit ID 10172141
MAS/MILS ID 0291490037
Record type Site
Current site name E C Mainprize Quarry and Mill
Alternate or previous names J.B.Old Estate, Old Mine

Geographic coordinates

Point of reference Trench
Geographic coordinates: -91.55454, 36.55818 (WGS84)
Elevation 223
Location accuracy 10(meters)

Site location context

Political divisions (FIPS codes)

Oregon(county)

Missouri(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Thayer(quadrangle 1:24,000 scale)

West Plains(quadrangle 1:100,000 scale)

Poplar Bluff(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Spring(hydrologic unit)

Upper White(hydrologic accounting unit)

Upper White(hydrologic subregion)

Arkansas-White-Red(hydrologic region)

Geographic areas

Country State County
United States Missouri Oregon

Public Land Survey System information

Meridian Township Range Section Fraction State
5th Principal 022 N 005 W 18 Missouri

Commodities

Commodity Importance
Stone, Crushed/Broken Primary

Materials information

Materials Type of material
Chalcopyrite Unknown
Chert Unknown
Hematite Unknown
Kaolinite Unknown
Limonite Unknown
Marcasite Unknown
Pyrite Unknown
Pyrolusite Unknown
Quartz Unknown
Sphalerite Unknown

Nearby scientific data

Trench (1) -91.55454, 36.55818
ListMap

Economic information

Ore body information

  • Thickness 3M
    Length 45M
    Width 45M
    Area 1HA
    Depth to top 5M
    Field Value
    Type of Orebody #1 SEDIMENTARY
    Shape of Orebody #1 TABULAR
    Type of Orebody #2 OTHER
    Shape of Orebody #2 LENTICULAR
    Shape of Orebody #3 PIPELIKE
    Primary mode of Origin RESIDUAL CONCENT
    Secondary mode of Origin OXIDATION
    Primary Ore Control LITHOLOGY
    Secondary Ore Control FRACTURING
    Degree of Wallrock Alter. NONE
    Type of Wallrock Alter. #1 UNKNOWN
    Minimum Depth to Top 0
    Avg. Thick. Unconsol. Mat. 15
    Min. Thick. Unconsol. Mat. 5
    Total Surface Area (HA) 1
    Date of Last Modification 791019

Comments on the geologic information

  • DEPOSITIONAL.CHARACTER OF ORE: OCCURS AS POCKETS OF LIMONITE/HEMATITE IN THE RESIDUUM OR IN CAVITIES IN UNDERLYING ROCK. ORE IS IN RESIDUUM OVERLYING JEFFERSON CITY AND ROUBIDOUX FORMATIONS.
  • MINERAL GANGUE CONSISTS OF SOIL MATRIX. SOIL MOSTLY KAOLINITE, QUARTZ, AND CHERT.

Economic information about the deposit and operations

Operation type Surface
Development status Producer
Commodity type Non-metallic
Significant No
Year of first production 1943

Comments on exploration

  • EXPLORATION: BROWN IRON MINES USUALLY DISCOVERED BY VISUAL INSPECTION FOR PRESENCE OF LIMONITE, FOLLOWED BY DIGGING OF TEST PIT. DATE OF GEOLOGIC MAPPING IS UNCERTAIN.

Mining district

District name Missouri Brown Iron Belt

Land status

Ownership category Private

Ownership information

  • Type Owner
    Owner J. B. Old'S Heirs
    ID 2300128
    Interest 100
    Home office Missouri
    Year 1978

Comments on the ownership information

  • OWNER/OP. OWNERSHIP DATA FROM A 1958 STUDY. PROPERTY MAY HAVE SINCE CHANGED HANDS.

Comments on the reserve resource information

  • ORE GRADE GRADE OF 37.8% FE HAS BEEN USED. THIS IS AN ESTIMATE OF THE AVERAGE GRADE FOR ALL REMAINING RESERVES. ACTUAL GRADE FOR EACH MINE WILL VARY BUT IS NOT BELOW 35% FE.

Workings at the site

  • Type of workings Surface
    Area 1HA
    Field Value
    MAS Development Schedule # 1
    Mining Record # 1
    Status of Mining Method PROPOSED
    Mining Method STRIP-HILLSIDE
    Percent Waste Rock 80
    Avg. Overburden Thickness 3
    Primary Material Cover SAND, SILT
    Percentage 100
    Hardness of Ore SAND, SILT
    Max. Pit Slope (degrees) 30
    Preprod. Stripping Vol. 0
    Operating Days per Year 250
    Operating Shifts per Day 1
    Year of Information 1978

Reference information

Bibliographic references

  • Deposit

    MGS PRODUCERS DIRECTORY

  • Deposit

    ASCS PHOTO BLV-1HH-87 5-24-67 1:20000 - 7 AC

  • Deposit

    DAM INV PHOTO FLT 21 2-68 5-2-78 1:72000 - AC

  • Deposit

    REVISED BY MILS 6-79

General comments

Subject category Comment text
Deposit LOCATION MINE LOCATION HAS BEEN TAKEN AS CENTER OF PROPERTY OWNER/OP. OWNERSHIP DATA FROM A 1958 STUDY. PROPERTY MAY MINING ORE IS IN THE SOIL SO THERE IS USUALLY NO COVER. BENCH HEIGHT NOT APPLICABLE . NO BENCHES. NO COST INFORMATION INCLUDED FOR MINING. MILLING CONCENTRATE AVERAGED 55% FE AND NOT MORE THAN

Reporter information

Type Date Name Affiliation Comment
Reporter 27-FEB-1984 Intermountain Field Operations Center (IFOC) U.S. Bureau of Mines

Beyond USGS

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

Current status (per MSHA)

StatusAbandoned since 04/20/1994
MSHA mine ID2300128
Mine name (MSHA)Mainprize Quarry & Mill
Current operatorMainprize Quarry
Current controller (parent)Mainprize Elsie C
Mine typeSurface (Metal / non-metal)

MSHA cross-reference per the original MRDS record. Mine status and operator reflect MSHA's last published Mines export (February 2025); MSHA's public bulk feed has been unavailable since, so this may be out of date. See the Mine Data Retrieval System for current status.

Open MSHA's Mine Data Retrieval System for inspections, accidents, and violations for this mine.

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