The DeLamar Mining Co., Sommercamp Adit No. 2 is a silver mine located in Owyhee county, Idaho at an elevation of 7,241 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: 7,241 Feet (2,207 Meters)
Commodity: Silver
Lat, Long: 43.0136, -116.83250
Map: View on Google Maps
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DeLamar Mining Co., Sommercamp Adit No. 2 MRDS details
Site Name
Primary: DeLamar Mining Co., Sommercamp Adit No. 2
Secondary: Delamar Silver Mine and Mill
Secondary: Sommercamp Pit
Secondary: Wahl
Secondary: Voschay
Secondary: Wahl Tunnel
Secondary: Delamar
Secondary: Delamar Silver Mine
Secondary: Delamar Silver/Gold Mine
Secondary: South Wahl
Secondary: Florida Mountain
Secondary: Silver City
Secondary: Glen Silver
Commodity
Primary: Silver
Secondary: Gold
Tertiary: Antimony
Location
State: Idaho
County: Owyhee
District: Delamar 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
Type: Located Claim
Type: Patented
Workings
Type: Surface
Ownership
Owner Name: Delamar Mining Co., Ltd.
Percent: 100.0
Home Office: United Kingdom
Info Year: 1900
Owner Name: Canadian Superior Mining (Us), Ltd.
Home Office: Canada
Info Year: 1978
Years: 1978 -
Owner Name: Earth Resources Co.
Home Office: Texas
Info Year: 1978
Years: 1978 - 1986
Owner Name: Superior Oil Co.
Percent: 47.50
Home Office: Texas
Info Year: 1978
Years: 1978 - 1986
Owner Name: Mapco Minerals Corp.
Percent: 52.20
Info Year: 1983
Years: 1983 - 1986
Owner Name: Nerco, Inc.
Percent: 100.0
Home Office: Oregon
Info Year: 1986
Years: 1986 - 1995
Owner Name: Kinross Gold Corp.
Percent: 100.0
Home Office: Canada
Info Year: 1997
Years: 1995 -
Production
Year: 1997
Mined: 1315431.000 mt
Material type: Kinross 1997 AR, p. 12.
Year: 1996
Mined: 1260101.000 mt
Material type: Kinross 1997 AR, p. 12.
Description: Ore Mined 1260101 Mt Ore
Year: 1995
Description: Silver 1805000 T Oz
Year: 1994
Year: 1984
Mined: 710790.000 mt
Material type: ore mined
Description: Ore Mined 710790 Metric Tons/Yr
Year: 1982
Mined: 674940.000 mt
Material type: ore mined
Description: Ore Mined 674940 Metric Tons/Yr
Year: 1983
Mined: 767470.000 mt
Material type: ore mined
Description: Ore Mined 767470 Metric Ton/Yr
Year: 1981
Mined: 699450.000 mt
Material type: ore mined
Description: Ore Mined 699450 Metric Tons/Yr
Year: 1980
Mined: 680000.000 mt
Material type: ore mined
Description: Ore Mined 680000 Metric Tons
Year: 1979
Mined: 730000.000 mt
Material type: ore mined
Description: Ore Mined 730000 Metric Tons
Year: 1978
Mined: 552000.000 mt
Material type: ore mined
Description: Ore Mined 552000 Metric Tons
Deposit
Record Type: Site
Operation Category: Past Producer
Plant Type: Leach
Plant Subtype: Hydromet
Operation Type: Surface
Mining Method: Open Pit
Milling Method: Heap Leach-Agglomerate-Merrill-Crowe
Year First Production: 1863
Discovery Year: 1863
Years of Production:
Organization:
Significant: Y
Deposit Size: L
Physiography
General Physiographic Area: Intermontane Plateaus
Physiographic Province: Columbia Plateau
Physiographic Section: Payette Section
Mineral Deposit Model
Model Name: Hot-spring Au-Ag
Orebody
Name: Delamar
Form: POD/LENS
Structure
Not available
Alterations
Not available
Rocks
Name: Ash-Flow Tuff
Role: Associated
Age Type: Associated Rock
Age Young: Miocene
Name: Basalt
Role: Associated
Description: Basaltic Flows
Age Type: Associated Rock
Age Young: Miocene
Name: Granodiorite
Role: Associated
Description: Granodiorite Pluton
Age Type: Associated Rock
Age Young: Cretaceous
Name: Rhyolite
Role: Host
Description: Rhyolite Quartz Porphyry
Age Type: Host Rock
Age Young: Miocene
Analytical Data
Not available
Materials
Ore: Gold
Ore: Pyrargyrite
Ore: Proustite
Ore: Polybasite
Ore: Naumannite
Ore: Miargyrite
Ore: Jamesonite
Ore: Electrum
Ore: Cerargyrite
Ore: Silver
Ore: Argentite
Gangue: Beidellite
Gangue: Marcasite
Gangue: Pyrite
Comments
Comment (Geology): PRIMARY MINERALS CONSIST OF NANMANNITE (AG2SE), ARGENTITE, CERARGYRITE, NATIVE SILVER, AND ARGENTOJAROSITE. THERE IS A SMALL AMOUNT OF FREE GOLD PRESENT.
Comment (Reserve-Resource): 1995 RESERVES ARE "IN PLACE, MINEABLE, PARTIALLY DILUTED, METALLURGICAL RECOVERY NOT APPLIED. MILL ORE CUTOFF - DELAMAR 86 G/T SILVER EQIVALENT - STONE CABIN 0.99 G/T GOLD EQUIVALENT. LOW GRADE CUTOFF - DELAMAR 62 G/T SILVER EQUIVALENT." FROM FORM 40-F, 12/31/96, P. 12.
Comment (Production): 1995: STRIPPING RATIO = 4.2 MT WASTE:1 MT ORE. METALLURGICAL RECOVERIES = 93% FOR AU; 78% FOR AG.
Comment (Development): PROPERTY COVERS 9169 ACRES, INCLUDES 374 CLAIMS ; TOTAL$: 19.8 ; MILL.CAP: 620.5 TONS ; ECON.YEAR: 1976 ; ECON.COM: 1976 ESTIMATED MINING RATE OF 5.5 MILLION TONS/YEAR THAT WOULD INCLUDE 2.5 MILLION OZ REFINED SILVER AND GOLD
Comment (Location): CLAIM GROUP EXTENDS A MI FROM JORDAN CREEK ACROSS CREST OF DELAMAR MTN.
Comment (Workings): OPEN PIT MINE DEVELOPED IN 1976
Comment (Geology): THE USUAL ORE CONSISTS OF FINELY DIVIDED NATIVE GOLD, LESS THAN 1% PYRITE, AND RICH SILVER MINERALS WHICH IN PLACES REPLACE CLAYEY SERICITE.
References
Reference (Deposit): MCQUISTON,F.W. JR., AND R.S. SHOEMAKER. GOLD AND SILVER CYANIDATION PLANT PRACTICE, VOLUMN II.
Reference (Deposit): CARTER, RUSSELL A., NATIONS NEWEST SILVER MINE USES OPEN-PIT METHODS. MINING ENGINEERING, JAN. 1978, PP. 41-44.
Reference (Deposit): TALBOTT, LYLE W., AND LAURENCE D. HARTZOG. SEMIAUTOGENOUS GRINDING AT THE DELAMAR SILVER MINE. SME-AIME PRE-PRINT NO. 80-59, FEB.24-28, 1980, 2 PP.
Reference (Reserve-Resource): MINEABLE RESERVES AS OF DEC. 31, 1984 (FROM NERCO, INC. 1984 10-K P.9)
Reference (Reserve-Resource): 1994 KINROSS ANNUAL REPORT.
Reference (Reserve-Resource): NERCO, INC. 1984 FORM 10-K, P. 9.
Reference (Reserve-Resource): KINROSS GOLD CORPORATION, FORM 40-F. DEC. 31. 1995. P4.
Reference (Reserve-Resource): 4/97 - KINROSS GOLD'S 1996 AR, P. 21.
Reference (Deposit): LINDGREN, WALDEMAR. THE GOLD AND SILVER VEINS OF SILVER CITY, DE LAMAR, AND OTHER MINING DISTRICTS OF IDAHO: U. S. GEOLOGICAL SURVEY TWENTIETH ANNUAL REPORT, 1900, VOL. 3, CHAPT. III, P. 122-129.
Reference (Deposit): E/MJ. IDAHO, JUNE 1976.
Reference (Deposit): MINING RECORD. LUCKY FRIDAY TOP GOLD PRODUCER. NOV. 3, 1982.
Reference (Deposit): E/MJ. IDAHO. JAN. 1977, P. 137.
Reference (Deposit): ASHER, R. R. GEOLOGY AND MINERAL RESOURCES OF A PORTION OF THE SILVER CITY REGION, OWYHEE COUNTY, IDAHO: IDAHO BUREAU OF MINES AND GEOL. PAMPHLET 138, 1968, 106 P.
Reference (Deposit): SAVAGE, C. N., AND OTHERS. DEVELOPMENTS IN MINERALS, MINING, AND ENERGY RESOURCES IN IDAHO FOR 1977: IDAHO BUREAU OF MINES AND GEOL. OPEN-FILE REPORT 78-1, 1978, P. 20.
Reference (Deposit): MORRISON-KNUDSON COMPANY, INC.-MINING GROUP. MINE DEPOSIT FILE REPORT, DELAMAR SILVER MINE, JORDON VALLEY, OREGON, FINAL REPORT. USBM CONTRACT NO. SO221028, MAY 1983.
Reference (Deposit): MAPCO. DELAMAR SILVER MINE. UNDATED, 5 PP.
Reference (Deposit): 1966 DIREXPL CONTINENTAL MATERIALS CORP - DDH
Reference (Deposit): RODGERS, WILLIAM H., KENNETH L. MOSS, AND ROBERT E. THOMASON. THE DELAMAR SILVER MINE, AN UPDATE. UNKNOWN PUB., NOV. 1980, 7 PP.
Reference (Deposit): WORLD MINING, SEPT. 1982, P. 69.
Reference (Deposit): E/MJ. IDAHO. SEPT. 1976, P. 152.
Reference (Deposit): NEW YORK TIMES, APRIL 18, 1977, P. 49,51.
Reference (Deposit): E/MJ. 45 TOP U.S. SILVER MINES. JUNE 1982, P. 15.
Reference (Deposit): ENG. MINING JOUR., 1920 , REOPENING OF OLD DELAMAR MINE UNDERWAY: ENG. MINING JOUR., V. 110 , NO. 11 , P. 538 - 539 .
Reference (Deposit): SPOKANE CHRONICLE, OCT. 21 , 1974 ; MAR. 23 , 1976 ; DEC. 6 , 1976 ; AP. 5 , 1977 ; AP. 27 , 1977
Reference (Deposit): 1897 GEOLMAP LINDGREN, WALDEMAR, 20TH ANNUAL RPT.
Reference (Deposit): BELL, R.N., 1908, NINTH ANNUAL REPORT OF THE MINING INDUSTRY OF IDAHO FOR THE YEAR 1907: OFFICE OF INSPECTOR OF MINES, BOISE, IDAHO, P. 141-144.
Reference (Deposit): 1926 GEOLMAP IDAHO BUR MINES AND GEOLOGY BULL 11
Reference (Deposit): MAPCO, INC., ANNUAL REPORT 1981.
Reference (Deposit): WORLD MINING DELAMAR SILVER MINE-THIRD LARGEST IN UNITED STATES NOW POURING BULLION. NOV 1977, PP 59-61.
Reference (Deposit): PIPER, A. W., AND LANEY. F. B. GEOLOGY AND METALLIFEROUS RESOURCES OF THE REGION ABOUT SILVER CITY, IDAHO: IDAHO BUREAU OF MINES AND GEOL. BULLETIN 11, 1926.
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.
