Boise - Rochester Mine

The Boise - Rochester Mine is a silver and gold mine located in Elmore county, Idaho at an elevation of 6,171 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

Name: Boise - Rochester Mine  

State:  Idaho

County:  Elmore

Elevation: 6,171 Feet (1,881 Meters)

Primary Mineral: Silver, Gold

Lat, Long: 43.7867, -115.10720

Map: View on Google Maps

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.


Satelite image of the Boise - Rochester Mine

Boise - Rochester Mine MRDS details

Site Name

Primary: Boise - Rochester Mine
Secondary: Bagdad Chase
Secondary: General Pettit Lombard
Secondary: Stedtman
Secondary: Old Chunk


Commodity

Primary: Silver
Primary: Gold
Tertiary: Sulfur


Location

State: Idaho
County: Elmore
District: Atlanta District Or Middle Boise 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: Boise National Forest


Holdings

Not available


Workings

Type: Underground


Ownership

Owner Name: Talache Mines Inc.


Production

Year: 1936
Time Period: 1870 - 1936
Material type: ORE AU/AG
Description: Cp_Grade: ^0.328 To 0.4614 Oz. Au Per Ton, Ag


Deposit

Record Type: Site
Operation Category: Past Producer
Operation Type: Unknown
Year First Production: 1869
Discovery Method: Ore-Mineral In Place
Years of Production:
Organization:
Significant: N
Deposit Size: M


Physiography

General Physiographic Area: Rocky Mountain System
Physiographic Province: Northern Rocky Mountains
Physiographic Detail: Sawtooth Mountains


Mineral Deposit Model

Not available


Orebody

Form: LENTICULAR

Form: LENTICULAR


Structure

Not available


Alterations

Alteration Type: L
Alteration Text: Sericitization, Oxidation , Silicification, Gouge, Brecciation


Rocks

Not available


Analytical Data

Analytical Data: CONCENTRATE VALUED AT $40 - $140 PER TON, MILL - HEAD VALUES $7 - $10/TON . AU ASSAYS FROM .328 TO .4614 OZ./TON
Analytical Data: AG ASSAYS FROM 1.038 TO 1.734 OZ./TON


Materials

Ore: Silver
Ore: Pyrargyrite
Ore: Polybasite
Ore: Proustite
Ore: Miargyrite
Gangue: Quartz
Gangue: Pyrite
Gangue: Gypsum


Comments

Comment (Deposit): UPPER PART OF OLD CHUNK ORE DIPS STEEPLY SE

Comment (Location): ADJOINS THE MONARCH PROPERTY ON THE NE. ; FROM E. CREST OF ATLANTA HILL TO BOTTOM OF MONTEZUMA GULCH (2700 FT.)

Comment (Production): ABOUT $1,000,000 TOTAL PRODUCTION (TO 1928). PRODUCTION PROBABLY EXCEEDS $2,500,000. HIGH AND LOW GRADE ORES MIXED. PRODUCTION INTERMITTENT - 1870 - 1936 .

Comment (Development): 40-STAMP MILL; POWER PLANT; 150-TON CYANIDE PLANT; 100-TON FLOTATION PLANT. ST. JOSEPH LEAD CO. CONTROLLED OVER 10 PATENTED AND 19 UNPATENTED CLAIMS, INCLUDING OTHER PROPERTIES ; ECON.COM: ORE DIFFICULT TO TREAT, ONLY 1/2 OF CONTENTS AMENABLE TO PLATE AMALGAMATION; THE METHODS OF CONCENTRATION AND CYANIDING THE CONCENTRATES GAVE UNSATISFACTORY RESULTS.


References

Reference (Deposit): BALLARD, S. M., 1928, GEOLOGY AND ORE DEPOSITS OF THE ROCKY BAR QUADRANGLE: IDAHO BUREAU OF MINES & GEOL. PAM. 26, P. 33

Reference (Deposit): ANDERSON, A.L., 1939, GEOLOGY AND ORE DEPOSITS OF THE ATLANTA DISTRICT, ELMORE COUNTY, IDAHO: IDAHO BUREAU OF MINES AND GEOLOGY PAMPHLET 49, 71 P.

Reference (Deposit): 1917 DIREXPL ST. JOSEPH LEAD COMPANY

Reference (Deposit): 1928 GEOLMAP IDAHO BUREAU OF MINES AND GEOLOGY PAMPHLET 26

Reference (Deposit): 1939 GEOLMAP IDAHO BUREAU OF MINES AND GEOLOGY PAMPHLET 49

Reference (Production): BALLARD, S. M. 1928, IDAHO BUREAU OF MINES & GEOL. PAM. 26, P. 33; ANDERSON, A.L., 1939, IDAHO BUREAU OF MINES AND GEOLOGY PAMPHLET 49, 71 P.


Idaho Gold

Where to Find Gold in Idaho

"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 at Where to Find Gold in Idaho.