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Trench and Josephine Mine Group

Producer in Santa Cruz county in Arizona, United States with commodities Lead, Zinc, Silver, Copper, Gold, Manganese
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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. Workings at the site
  19. Links to other databases
  20. Bibliographic references
  21. General comments
  22. Reporter information

Geologic information

Identification information

Deposit ID 10048334
MRDS ID M899918
Record type Site
Current site name Trench and Josephine Mine Group
Alternate or previous names Josephine Mines, Lunch Cans Prospect
Related records 10186789

Geographic coordinates

Geographic coordinates: -110.72956, 31.46542 (WGS84)
Elevation 1524
Relative position 1 1/4 MILE WEST OF HARSHAW, ON AN EASTERN TRIBUTARY OF ALUM GULCH

Site location context

Political divisions (FIPS codes)

Santa Cruz(county)

Arizona(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Harshaw(quadrangle 1:24,000 scale)

Nogales(quadrangle 1:100,000 scale)

Nogales(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Upper Santa Cruz(hydrologic unit)

Santa Cruz(hydrologic accounting unit)

Middle Gila(hydrologic subregion)

Lower Colorado(hydrologic region)

Federal lands

Coronado 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 Arizona Santa Cruz

Public Land Survey System information

Meridian Township Range Section Fraction State
Gila and Salt River 023S 016E 05 SE OF NE Arizona

Comments on the location information

  • AT TRENCH CAMP; JOSEPHINE MINE IS LOCATED 1/4 MILE NW OF TRENCH MINE ; INFO FROM LAND.ST :(1979)

Commodities

Commodity Importance
Lead Primary
Zinc Critical Primary
Silver Primary
Copper Secondary
Gold Secondary
Manganese Critical Tertiary

Comments on the commodity information

  • JOSEPHINE MINE ORE CONSISTS PRIMARILY OF SULFIDES

Materials information

Materials Type of material
Alabandite Ore
Freibergite Ore
Galena Ore
Pyrite Ore
Pyromorphite Ore
Rhodochrosite Ore
Sphalerite Ore
Tetrahedrite Ore

Alteration

  • (Local) Pyrite Gossan

Analytical data

Result ASSAY VALUES AVERAGED 6% PB, 5% ZN, 6 OZ./TON AG, MINOR CU AND AU

Host and associated rocks

  • Host or associated Associated
    Rock type Plutonic Rock > Mafic Intrusive Rock > Diorite
    Rock unit name Josephine Canyon Diorite
    Rock description Josephine Canyon Diorite
    Stratigraphic age (youngest) Late Cretaceous
    Stratigraphic age (youngest) Late Cretaceous
  • Host or associated Associated
    Rock type Volcanic Rock (Aphanitic) > Intermediate Volcanic Rock > Trachyandesite
  • Host or associated Host
    Rock type Volcanic Rock (Aphanitic) > Felsic Volcanic Rock > Rhyolite

Nearby scientific data

(1) -110.72956, 31.46542
ListMap

Economic information

Geologic structures

Type of structure Regional
Structure description Rhyolite Similar To That Of Red Mountain
Type of structure Local
Structure description Vein And Ore Are Banded, Porous, And Drusy; Ore Zoneis Narrow And Pinches Out In Places

Ore body information

  • General form POCKETS
    Strike N57W
    Dip 60 NNE
    Plunge direction SE
    Length 365.76M
    Width 1.52M
    Depth to bottom 304.8M
  • General form POCKETS
    Dip 60 NNE

Controls for ore emplacement

  • Nw-Trending Vein Systems In Fractured Mass Of Intrusive Diabase

Comments on the geologic information

  • FRACTURES IN INTRUSIVE DIABASE APPEAR TO HAVE LOCALIZED ORE DEPOSITS IN TRENCH AREA; VEINS BECOME UNPRODUCTIVE AS SOON AS THEY PASS FROM DIABASE INTO UNDERLYING TUFFACEOUS CONGLOMERATE; WIDTH AND GRADE OF TRENCH VEIN DIMINISH TOWARD SE

Economic information about the deposit and operations

Development status Producer
Commodity type Metallic
Deposit size Small
Significant Yes
Discovery year 1855
Discoverer Indians And Mexicans
Year of first production 1893
Year of last production 1965

Mining district

District name Harshaw District

Land status

Ownership category National Forest

Ownership information

  • Type Owner
    Owner Nash, J. And Mc Farland, E.
    First year 1954

Workings at the site

  • Type of workings Underground
    Length 3962.4M
    Overall depth 243.84M

Comments on the workings information

  • JOSEPHINE MINE IS DEVELOPED BY ABOUT 3500 FT OF WORK, TO A DEPTH OF 500 FT; 200-TON FLOTATION PLANT; TRENCH MINE WORKINGS INCLUDED 700 FT VERTICAL SHAFT

Comments on development

  • OWNERS AND OPERATORS INCLUDED COL. TITUS (1859), J.B. HAGAN (PATENTED CLAIMS PRIOR TO 1872), PADREZ (1870'S), HEARST ESTATE (1880-?), POWERS AND ASSOCIATES (1899), W.A. CLARK (1915), FARRELL AND MORRISON, AMERICAN SMELTING AND REFINING CO., J. NASH AND E. MCFARLAND, HOY AND COOMBS, TRENCH CONSOLIDATED MINING CO., C.B. WILSON, A.D. SYDENHAM, TRENCH MINING CO., GOLD CANYON MINING CO. (S.F. COX, 1937), F. AHLBERG; JOSEPHINE DEPOSIT WAS DISCOVERED IN THE MID 1870'S BUT WAS NOT WORKED UNTIL ABOUT 1885

Reference information

Bibliographic references

General comments

Subject category Comment text
Deposit FISSURE VEIN ON TRENCH CLAIM DIPS 60NNE AND AVERAGES 1-5 FT IN WIDTH; JOSEPHINE MINE IS ON NW CONTINUATION OF TRENCH VEIN; FAIRLY HIGH-GRADE MATERIAL EXTENDS TO DEPTH OF 450 FT; 2 PRINCIPAL VEINS, TRENCH AND JOSEPHINE, ARE SUBPARALLEL AND ARE LINKED BY THE CROSS VEIN WHICH STRIKES NE AND DIPS SE
Deposit SEE ALSO: JANUARY AND NORTON MINE GROUP ; INFO.SRC : 1 PUB LIT; 2 UNPUB REPT
Deposit Discovery Year: 1850'S

Reporter information

Type Date Name Affiliation Comment
Reporter 01-MAR-1982 Calder, Susan R. Arizona Bureau of Geology and Mineral Technology

Beyond USGS

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

Maps centered on this site

Authoritative Arizona resources

These are landing pages for further research — the state agencies don't currently expose per-mine deep links.