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Croft Magnetite Mine

Past Producer in Putnam county in New York, United States with commodities Iron, Sulfur
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Sections on this page
  1. Identification information
  2. Geographic coordinates
  3. Site location context
  4. Geographic areas
  5. Commodities
  6. Materials information
  7. Host and associated rocks
  8. Nearby scientific data
  9. Ore body information
  10. Controls for ore emplacement
  11. Economic information about the deposit and operations
  12. Mining district
  13. Links to other databases
  14. Bibliographic references
  15. Reporter information

Geologic information

Identification information

Deposit ID 10067364
MRDS ID W000099
Record type Site
Current site name Croft Magnetite Mine
Related records 10199933

Geographic coordinates

Geographic coordinates: -73.88512, 41.36693 (WGS84)

Site location context

Political divisions (FIPS codes)

Putnam(county)

New York(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Peekskill(quadrangle 1:24,000 scale)

Bridgeport(quadrangle 1:100,000 scale)

Hartford(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Lower Hudson(hydrologic unit)

Lower Hudson(hydrologic accounting unit)

Lower Hudson-Long Island(hydrologic subregion)

Mid Atlantic(hydrologic region)

Geographic areas

Country State County
United States New York Putnam

Commodities

Commodity Importance
Iron Primary
Sulfur Tertiary

Comments on the commodity information

  • SURFACE WORKINGS 700 FEET ALONG STRIKE, ORE BED WAVY, AVERAGE 10 TO 12 FEET THICK; STRIKE LITTLE WEST OF NORTH; DIP 30 DEG. TO 35 DEG. EAST; ORE FINE-GRAINED; ADIT 100 FEET BELOW OUTCROP IN HILLSIDE; COUNTRY ROCK HORNBLENDE GNEISS, GNEISSIC GRANITE; OVERLIES CRYSTALLINE LIMESTONE BED

Materials information

Materials Type of material
Magnetite Ore
Pyrite Ore

Host and associated rocks

  • Host or associated Host
    Rock type Metamorphic Rock > Gneiss
    Stratigraphic age (youngest) Neoproterozoic

Nearby scientific data

(1) -73.88512, 41.36693
ListMap

Economic information

Ore body information

  • Strike NW
    Dip 30-35NE

Controls for ore emplacement

  • Iron Rich Pre Cambrian Bed

Comments on the geologic information

  • GEOL.DESC: HIGHLY METAMORPHOSED AND FAULTED AREA; COMPLEX GEOLOGY, NUMEROUS THEORIES

Economic information about the deposit and operations

Development status Past Producer
Commodity type Both
Significant No
Production years 1880-1881

Mining district

District name Southeast New York

Comments on the production information

  • ORE ROASTED; SERVED BY RAILROAD; PRODUCTION FIGURES NOT AVAILABLE, ESTIMATED 100,000 TONS OF ORE MINED

Comments on the reserve resource information

  • NO FIGURES AVAILABLE, PROBABLY MUCH LOW GRADE ORE REMAINS AND SOME HIGH GRADE.

Reference information

Bibliographic references

  • Deposit

    COLONY, R. J., 1921, "MAGNETITE DEPOSITS S.E. NEW YORK," N.Y.S. MUSEUM BULL. 249-250, MAP, TEXT, PG 115-117

  • Deposit

    NEWLAND, D. H., 1919, "MINERAL RESOURCES OF NEW YORK," N.Y.S. MUSEUM BULL. 223, TEXT, PG 124, 125

  • Deposit

    SMOCK, J. C., 1889, "IRON MINES OF NEW YORK," N.Y.S. MUSEUM BULL. 7, MAP, TEXT, PG 19

  • Production

    SMOCK, 1889

Reporter information

Type Date Name Affiliation Comment
Reporter 01-DEC-1971 D'Agostino, John P. U.S. Geological Survey

Beyond USGS

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

Maps centered on this site