Trench and Josephine Mine Group

The Trench and Josephine Mine Group is a lead, zinc, and silver mine located in Santa Cruz county, Arizona at an elevation of 5,000 feet.

About the MRDS Data:

All mine locations were obtained from the USGS Mineral Resources Data System. The locations and other information in this database have not been verified for accuracy. It should be assumed that all mines are on private property.

Mine Info

Satelite View

MRDS mine locations are often very general, and in some cases are incorrect. Some mine remains have been covered or removed by modern industrial activity or by development of things like housing. The satellite view offers a quick glimpse as to whether the MRDS location corresponds to visible mine remains.

Site Name

Primary: Trench and Josephine Mine Group
Secondary: Josephine Mines
Secondary: Lunch Cans Prospect

Commodity

Primary: Lead
Primary: Zinc
Primary: Silver
Secondary: Copper
Secondary: Gold
Tertiary: Manganese

Location

State: Arizona
County: Santa Cruz
District: Harshaw District

Land Status

Land ownership: National Forest
Note: the land ownership field only identifies whether the area the mine is in is generally on public lands like Forest Service or BLM land, or if it is in an area that is generally private property. It does not definitively identify property status, nor does it indicate claim status or whether an area is open to prospecting. Always respect private property.

Holdings

Not available

Workings

Type: Underground

Ownership

Owner Name: Nash, J. And Mc Farland, E.
Years: 1954 -

Production

Not available

Deposit

Record Type: Site
Operation Category: Producer
Operation Type: Unknown
Year First Production: 1893
Year Last Production: 1965
Discovery Year: 1855
Discovery Method: Ore-Mineral In Place
Years of Production:
Organization:
Significant: Y
Deposit Size: S

Physiography

General Physiographic Area: Intermontane Plateaus
Physiographic Province: Basin And Range Province
Physiographic Section: Sonoran Desert

Mineral Deposit Model

Not available

Orebody

Form: POCKETS

Form: POCKETS

Structure

Type: R
Description: Rhyolite Similar To That Of Red Mountain

Type: L
Description: Vein And Ore Are Banded, Porous, And Drusy; Ore Zoneis Narrow And Pinches Out In Places

Alterations

Alteration Type: L
Alteration Text: Pyrite Gossan

Rocks

Name: Diorite
Role: Associated
Age Type: Host Rock
Age Young: Late Cretaceous

Name: Diorite
Role: Associated
Age Type: Associated Rock Unit
Age Young: Late Cretaceous

Analytical Data

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

Materials

Ore: Rhodochrosite
Ore: Freibergite
Ore: Pyromorphite
Ore: Galena
Ore: Tetrahedrite
Ore: Pyrite
Ore: Alabandite
Ore: Sphalerite

Comments

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

Comment (Commodity): JOSEPHINE MINE ORE CONSISTS PRIMARILY OF SULFIDES

Comment (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

Comment (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

Comment (Workings): 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

Comment (Geology): 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

Comment (Deposit): SEE ALSO: JANUARY AND NORTON MINE GROUP ; INFO.SRC : 1 PUB LIT; 2 UNPUB REPT

Comment (Deposit): Discovery Year: 1850'S

References

Reference (Deposit): SCHRADER, FRANK C., 1915, MINERAL DEPOSITS OF THE SANTA RITA AND PATAGONIA MOUNTTAINS, ARIZONA; USGS BULLETIN 582, P. 253-254

Reference (Deposit): KARTCHNER, WAYNE E., 1944, THE GEOLOGY AND ORE DEPOSITS OF A PORTION OF THE HARSHAW DISTRICT, PATAGONIA MOUNTAINS, ARIZONA; PHD. THESIS, UNIVERSITY OF ARIZONA,P. 88-90.

Reference (Deposit): ADMR FILES, TRENCH MILL

Reference (Deposit): ABGMT CLIPPINGS FILE, TRENCH MINE

Reference (Deposit): SIMONS, FRANK S., 1972, MESOZOIC STRATIGRAPHY OF THE PATAGONIA MOUNTAINS AND ADJOINING AREAS, SANTA CRUZ COUNTY, ARIZONA; USGS PROFESSIONAL PAPER 658-E, P. 21-22

Reference (Deposit): SIMONS, FRANK S. 1974, GEOLOGIC MAP AND SECTIONS OF THE NOGALES AND LOCHIEL QUADRANGLES, SANTA CRUZ COUNTY, ARIZONA; USGS MAP I-762 (1:48000)

Reference (Deposit): KEITH, STANTON B., 1975, INDEX OF MINING PROPERTIES IN SANTA CRUZ COUNTY, ARIZONA; ARIZONA BUREAU OF MINES BULLETIN 191, P. 59

Reference (Deposit): ABGMT FILES, STANTON B. KEITH

Reference (Deposit): USBM FILES, TRENCH MINE

Reference (Deposit): ABGMT-USBM FILE DATA

Arizona Gold

"Where to Find Gold in Arizona" looks at the density of modern placer mining claims along with historical gold mining locations and mining district descriptions to determine areas of high gold discovery potential in Arizona. Read more: Where to Find Gold in Arizona.