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Maxfield Mine

Past Producer in Salt Lake county in Utah, United States with commodities Lead, Silver, Copper, Gold, Iron
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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. Alteration
  9. Host and associated rocks
  10. Nearby scientific data
  11. Geologic structures
  12. Ore body information
  13. Controls for ore emplacement
  14. Economic information about the deposit and operations
  15. Mining district
  16. Land status
  17. Ownership information
  18. Production statistics
  19. Workings at the site
  20. Links to other databases
  21. Bibliographic references
  22. General comments
  23. Reporter information

Geologic information

Identification information

Deposit ID 10102099
MRDS ID DC14130
Record type Site
Current site name Maxfield Mine
Related records 10251794

Geographic coordinates

Geographic coordinates: -111.68496, 40.64244 (WGS84)
Elevation 2124
Relative position 7800 FT. N. 33 W. FROM THE SUMMIT OF MT. RAYMOND

Site location context

Political divisions (FIPS codes)

Salt Lake(county)

Utah(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Mount Aire(quadrangle 1:24,000 scale)

Salt Lake City(quadrangle 1:100,000 scale)

Salt Lake City(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Jordan(hydrologic unit)

Jordan(hydrologic accounting unit)

Great Salt Lake(hydrologic subregion)

Great Basin(hydrologic region)

Federal lands

Uinta-Wasatch-Cache 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 Utah Salt Lake

Public Land Survey System information

Meridian Township Range Section Fraction State
Salt Lake 002S 002E 14 NW OF NE OF SE Utah

Comments on the location information

  • INFO FROM LAND.ST :1977

Commodities

Commodity Importance
Lead Primary
Silver Primary
Copper Secondary
Gold Secondary
Iron Tertiary

Materials information

Materials Type of material
Galena Ore
Gold Ore
Malachite Ore
Pyrite Ore
Silver Ore
Calcite Gangue
Diopside Gangue
Garnet Gangue
Quartz Gangue
Sepiolite Gangue
Wollastonite Gangue

Alteration

  • (Local) Limestone Next To Dike Has Been Altered To Silicates Containing Epidote, Mica, Wollastonite, Diopside, Garnet. There Is No Ore In The Zone. Bleaching Of The Ls. Is Common

Analytical data

Result AVERAGE GRADE OF ORE BETWEEN 1902-1940 0.165 OZ AU/TON
Result 51.8 OZ AG/TON
Result 1.4% CU
Result 19.7% PB

Host and associated rocks

  • Host or associated Associated
    Rock type Plutonic Rock > Mafic Intrusive Rock > Diorite
    Rock unit name Diorite Dikes
    Rock description Diorite Dikes
    Stratigraphic age (youngest) Pliocene
    Stratigraphic age (youngest) Pliocene
  • Host or associated Host
    Rock type Metamorphic Rock > Metasedimentary Rock > Quartzite
  • Host or associated Host
    Rock type Sedimentary Rock > Carbonate > Limestone
    Rock unit name Gardison Limestone;Tintic Quartzite
    Rock description Gardison Limestone;Tintic Quartzite

Nearby scientific data

(1) Tintic Quartzite
ListMap

Economic information

Geologic structures

Type of structure Regional
Structure description N. Flank, Big Cottonwood Uplift
Type of structure Local
Structure description Fissure (N To N20e, Steeply), Faulting

Ore body information

  • General form TABULAR
    Strike N TO N 20 E
    Dip IRREGULAR
    Length 30.48M
    Width 30.48M
  • General form TABULAR
    Dip IRREGULAR
  • General form TABULAR
    Dip IRREGULAR

Controls for ore emplacement

  • Favored Bedding, Fissure

Comments on the geologic information

  • THE MINE IS AT THE APEX OF A SMALL DIKE AND SILL SWARM, N 80=HYDROTHERMAL

Economic information about the deposit and operations

Development status Past Producer
Commodity type Metallic
Deposit size Large
Significant No
Discovery year 1871
Discoverer Maxfield Brother'S
Year of first production 1880

Mining district

District name Big Cottonwood District

Land status

Ownership category National Forest

Ownership information

  • Type Operator
    Owner L. W. Hoskins
  • Type Owner
    Owner U.S. Forest Service

Production statistics

  • Year 1940
    Period 1902-1940
    Material ORE
    Accuracy Accurate
    Description Cp_Grade: ^.17 Oz/Ton Au, 52 Oz/Ton Ag
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Ore Silver Silver 1468g/mt
    Ore Gold Gold 5g/mt

Comments on the production information

  • LINE G9: 0.17 OZ AU, 50 OZ AG, 20% PB, 1.5% CU

Workings at the site

  • Type of workings Underground
    Overall length 4572M

Comments on the workings information

  • TWO ADITS (CAVED), SHORT ADIT, RAISES, WINZES, DRIFTS, CROSSCUTS AND LARGE STOPES TOTALING MORE THAN 15,000 FT., LOWER WORKING ARE FLOODED, ABOUT 1800 FT. OF VERTICAL INTERVAL PROBED.

Reference information

Bibliographic references

General comments

Subject category Comment text
Deposit MANY ORE BODIES WERE FOUND ALONG THE FAVORABLE HORIZON NEAR THE BASE OF THE GARDISON LIMESTONE

Reporter information

Type Date Name Affiliation Comment
Reporter 01-JAN-1982 Doelling, Hellmut H. Utah Geological and Mineral Survey

Beyond USGS

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

External references

Maps centered on this site