Little Hill Mine

The Little Hill Mine is a copper mine located in Pinal county, Arizona at an elevation of 4,160 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: Little Hill Mine

Commodity

Primary: Copper
Secondary: Molybdenum
Tertiary: Lead
Tertiary: Silver

Location

State: Arizona
County: Pinal
District: Little Hills District

Land Status

Land ownership: State 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: Surface/Underground

Ownership

Owner Name: Little Hill Mining Co.
Home Office: Oracle, Az.

Production

Not available

Deposit

Record Type: Site
Operation Category: Past Producer
Operation Type: Unknown
Discovery Year: 1885
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

Not available

Structure

Type: L
Description: Wnw Mogul Fault Dipping 40-60s With Left Lateral Displacement Of 1500 Ft Or Maybe More

Alterations

Alteration Type: L
Alteration Text: Propyllitic & Sericitic; Weak Coincides With Mineralization

Rocks

Name: Gneiss
Role: Host
Age Type: Host Rock
Age Young: Pliocene

Analytical Data

Analytical Data: ROCK CHIP GEOCHEM SHOWED A 250 PPM CU ANOMALY SURROUNDED BY U-SHAPED 6 PPM MO ANOMALY

Materials

Ore: Chalcopyrite
Ore: Hematite
Ore: Chalcocite
Ore: Sphalerite
Ore: Molybdenite
Ore: Pyrite
Ore: Malachite
Ore: Chrysocolla
Ore: Covellite
Ore: Galena
Ore: Melaconite
Ore: Magnetite
Gangue: Quartz
Gangue: Sericite

Comments

Comment (Location): INFO FROM LAND.ST :1979

Comment (Deposit): THIS REPORT WAS TAKEN FROM RECORD M030486 OF JAN WILT IN MOLYBDENUM FILE, CONTACT PERSON T.G. THEODORE, USGS ; INFO.SRC : 1 PUB LIT; 2 UNPUB REPT

Comment (Development): FIRST CLAIMS STAKED FOR GOLD & SILVER, IN 1962-1965, ADJOINING DEL ORO CLAIMS WERE OPERATED SEPARATELY BY MCFARLAND AND HULLINGER CO. NOW DEL ORO IS OWNED AND OPERATED BY LITTLE HILL MINES. CANYON PIT AND HILLTOP ARE BOTH ADJOINING WORKINGS (1965) OWNED BY LITTLE HILLS MINES.

Comment (Deposit): DIMENSIONS DESCRIBE OREBODY MINED IN 1964 WHICH AVERAGED 1.5% CU.

Comment (Workings): 1 1/2 COMPARTMENT SHAFT, 51 DEG INCLINE 225 FT DEEP (1964). SEVERAL SMALL PITS SINCE 1964

Comment (Deposit): Discovery Year: 1880'S

References

Reference (Deposit): DURNING, 1972, MS THESIS, UNIV OF AZ.

Reference (Deposit): DURNING & DAVIS, 1978, AZ GEOL SOC DIGEST, V. 11, P. 81-89.

Reference (Deposit): JINKS, 1961, M.S. THESIS, UNIV OF AZ.

Reference (Other Database): CIMRI

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.