Eagan Mine

The Eagan Mine is a copper and silver mine located in Washington county, Idaho at an elevation of 3,399 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: Eagan Mine
Secondary: Egan

Commodity

Primary: Copper
Primary: Silver
Tertiary: Antimony
Tertiary: Lead
Tertiary: Zinc

Location

State: Idaho
County: Washington
District: Mineral District

Land Status

Land ownership: Private
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

Not available

Production

Not available

Deposit

Record Type: Site
Operation Category: Past Producer
Operation Type: Underground
Discovery Year: 1895
Discovery Method: Unknown
Years of Production:
Organization:
Significant: N
Deposit Size: M

Physiography

General Physiographic Area: Intermontane Plateaus
Physiographic Province: Columbia Plateau
Physiographic Section: Payette Section
Physiographic Detail: Cuddy Mountains

Mineral Deposit Model

Not available

Orebody

Form: LENTICULAR

Structure

Type: R
Description: Area Appears To Be On The North Limb Of A Faulted Anticline Of General N.E. Trend

Alterations

Alteration Type: L
Alteration Text: Oxidation

Rocks

Name: Diorite
Role: Associated
Age Type: Host Rock Unit
Age Young: Late Jurassic

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

Analytical Data

Analytical Data: ORE OF LOW GRADE CHEMICAL ANALYSIS OF SAMPLE GAVE 16.3 OZ AG/TON, 0.2 % PB, 1.3 % CU, 1.6 % SB, NO AU

Materials

Ore: Chalcopyrite
Ore: Tetrahedrite
Ore: Sphalerite
Ore: Galena
Gangue: Quartz
Gangue: Calcite
Gangue: Siderite
Gangue: Pyrite
Gangue: Barite

Comments

Comment (Workings): WORKINGS CONFINED TO 4 ADITS AND 2 INTERMEDIATE LEVELS.

Comment (Location): LOCATED 1 MILE ABOVE OLD TOWN OF MINERAL, ON STEEP SLOPE FACING N. FK. OF DENNETT CR.

Comment (Commodity): MINE IN OPERATION: 1890'S - 1905, 1919 - 1922

Comment (Deposit): VEIN DIP VARIES 25 - 55 DEG NE

Comment (Geology): METALLIC MINERALS ARE FINE-GRAINED AND SHOW A TENDENCY TO FORM BANDED, DISCONTINUOUS CONCENTRIC STRUCTURES, SUGGESTING COLLOFORM. DARK GRAY MEDIUM GRAINED DIORITE. HOST VOLCANICS, HIGHLY ALTERED OF LATITIC MATURE, QTZ-LATITE.

Comment (Deposit): Discovery Year: 1890'S

References

Reference (Deposit): ANDERSON, A. L., AND WAGNER, W. R., 1952, RECONNAISSANCE GEOLOGY AND ORE DEPOSITS OF THE MINERAL DISTRICT, IDAHO: IDAHO BUREAU OF MINES AND GEOLOGY PAMPHLET 95, 26 P.

Reference (Deposit): SMOLAK, G.M., 1924 , AN INVESTIGATION OF THE METALLURGICAL TREATMENT OF A LOW GRADE SILVER ORE FROM THE MINERAL MINE AT MINERAL, IDAHO: MOSCOW, IDAHO, UNIV. OF IDAHO, M.S. THESIS; 51 P.

Reference (Deposit): 1952 RECON IDAHO BUREAU OF MINES AND GEOL., PAMPHLET 9

Reference (Deposit): IDAHO BUREAU OF MINES & GEOLOGY PAMPHLET 13, P. 27.

Idaho Gold

"Where to Find Gold in Idaho" 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 Idaho. Read more: Where to Find Gold in Idaho.