Tres De Mayo Mine Group

The Tres De Mayo Mine Group is a silver and lead mine located in Santa Cruz county, Arizona at an elevation of 4,400 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: Tres De Mayo Mine Group
Secondary: Peck
Secondary: La Palma
Secondary: Palmetto
Secondary: Robert E. Bob Lee
Secondary: Hassayampa
Secondary: Hollywood
Secondary: Union

Commodity

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

Location

State: Arizona
County: Santa Cruz
District: Palmetto 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.
Administrative Organization: Coronado National Forest

Holdings

Not available

Workings

Type: Underground

Ownership

Owner Name: General Development And Mining Co. Tres De Mayo Mine); Frank Otero And Rupert Beyerle
Years: 1958 -

Owner Name: Arthur Peck And Frank Otero
Years: 1975 -

Production

Year: 1942
Time Period: 1910-1942
Material type: ORE
Description: Cp_Grade: ^70 Oz/T Ag, 25% Pb, Minor Cu & Au

Deposit

Record Type: Site
Operation Category: Past Producer
Operation Type: Unknown
Year First Production: 1909
Year Last Production: 1942
Discovery Year: 1880
Discovery Method: Ore-Mineral In Place
Years of Production:
Organization:
Significant: N
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: LENSES, TABULAR, IRREGULAR, BANDS AND PODS

Structure

Type: R
Description: Deposits Occur In Quartz Fissure Veins, Near Or Adjacent To Diorite Intrusions Which Form Small Disconnected Sheets And Dikes

Type: L
Description: Ne Fracture Zone; Major Fault Passes Through Area

Alterations

Alteration Type: L
Alteration Text: Surface Oxidation To 90 Ft Depth; Diorite Near Contact Is Both Chl Oritized And Epidotized

Rocks

Name: Granite
Role: Associated
Age Type: Associated Rock Unit
Age in Years: 160.000000+-20.000000
Age Young: Jurassic

Analytical Data

Not available

Materials

Ore: Chalcopyrite
Ore: Malachite
Ore: Argentite
Ore: Wulfenite
Ore: Cerargyrite
Ore: Sphalerite
Ore: Gold
Gangue: Psilomelane
Gangue: Quartz

Comments

Comment (Location): ON S SIDE OF FRESNO CANYON, 1 MI NE OF J ARILLAS MINE GROUP. ; INFO FROM LAND.ST :1979

Comment (Geology): NARROW BANDS OF MANGANESE ALSO FOUND WITHIN TRES DE MAYO VEIN AND IN ADJACENT WALL ROCK

Comment (Deposit): THIS REPORT REPRESENTS A MERGER OF ORIGINAL RECORD M000429 WITH RE CORD M030394 OF JAN WILT IN MOLYBDENUM FILE, CONTACT PERSON T.G. THEOD ORE, USGS ; INFO.SRC : 1 PUB LIT; 2 UNPUB REPT

Comment (Development): WORKED BY MEXICANS PRIOR TO 1880. PREVIOUS OWNERS/OPERATORS INCLU DE STOCKTON, BACKMAN & MERRITT MINES CO (1918-20), MONARCH MINING & MI LLING CO (1922), TAFT MINING & EXPLORATION CO (1928), MELVILLE SYNDICA TE (1929-30), NEWCOMER (1938-41), CUMMINGS (1942), PECK AND SALMANDO ( 1910), HUNTER (1923); 7 UNPATENTED CLAIMS IN 1958 (27 UNPATENTED CLAIM S IN 1923

Comment (Deposit): RICH CERARGYRITE POCKETS. LENSES OF GALENA IN A QUARTZ-PSILOMELAN E-GOUGE GANGUE IN FISSURE ZONE VEINS. NE STRIKING FRACTURES CONTAIN WE AK OXIDIZED SULFIDE MINERALIZATION. DEPOSITS OCCUR MAINLY IN 2 VEINS A BOUT 300 FT APART; 4 FT WIDE MN VEIN ALSO OCCURS ON PROPERTY; 20 FT WI DE FAULT ZONE THAT STRIKES N-S & DIPS STEEPLY W INTERSECTS TRES DE MAY O VEIN ABOUT 600 FT NW OF TRES DE MAYO SHAFT; BETWEEN FAULT AND VEIN A RE NUMEROUS MINOR FISSURES STRIKING N30-65W

Comment (Workings): SHAFT OPERATION. WORKINGS INCLUDED THE 542-FT VERTICAL TRES DE MA YO SHAFT AND SEVERAL LEVELS; 4TH LEVEL HAS TOTAL OF 420 FT OF DRIFTS A ND CROSSCUTS

References

Reference (Deposit): KEITH, 1975, ABM BULL 191

Reference (Deposit): SCHRADER, 1915, USGS BULL 582

Reference (Deposit): MOGER, 1969, MS THESIS, UNIV OF AZ

Reference (Deposit): SIMONS, 1974, USGS MAP I-762

Reference (Deposit): ABGMT-USBM FILE DATA

Reference (Deposit): USBM FILES, TRES DE MAYO MINE GROUP

Reference (Deposit): ADMR FILE DATA, TRES DE MAYO MINE

Reference (Deposit): ABGMT CLIPPINGS FILE, TRES DE MAYO PROPERTY

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

Reference (Other Database): CIMRI

Reference (Production): KEITH, 1975

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.