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
Elevation: 4,400 Feet (1,341 Meters)
Commodity: Silver, Lead
Lat, Long: 31.44583, -110.80139
Map: View on Google Maps
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Tres De Mayo Mine Group MRDS details
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.
