The Great Excelsior Mine is a gold and silver mine located in Whatcom county, Washington at an elevation of 1,949 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.
Name: Great Excelsior Mine
Elevation: 1,949 Feet (594 Meters)
Commodity: Gold, Silver
Lat, Long: 48.89889, -121.80472
Map: View on Google Maps
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.
Great Excelsior Mine MRDS details
Primary: Great Excelsior Mine
Secondary: Lincoln Mine
Secondary: President Mine, Excelsior
District: Mount Baker District
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: In Mount Baker National Forest
Owner Name: Steelhead Gold
Years: 1988 -
Record Type: Site
Operation Category: Producer
Operation Type: Unknown
Year First Production: 1903
Year Last Production: 1916
Discovery Year: 1900
Years of Production:
Deposit Size: S
General Physiographic Area: Pacific Mountain System
Physiographic Province: Cascade-Sierra Mountains
Physiographic Section: Northern Cascade Mountains
Mineral Deposit Model
Model Name: Polymetallic veins
Form: BRECCIA PIPE, STOCKWORKS
Description: West-Plunging Syncline Superimposed On West Limb Of Regional North-Trending Anticline
Description: Strong Shears
Alteration Type: L
Alteration Text: Andesite Is Silicified And Sericitized
Analytical Data: LOWER TUNNEL: TR AU, 0.38 OZ/TON AG.
Analytical Data: BIG STOPE: 0.010 OZ/TON AU, 1.73 OZ/TON AG
Analytical Data: ASSAYS FROM EARLY PRODUCTION: TR-0.08 OZ/TON AU (AVG 0.02-0.03 OZ/TON). IN SOME SAMPLES AG AVG=2.0 OZ/TON. HIGH AU ASSAY FROM RESERVES: 0.54 OZ/TON (AVG 0.09 OZ/TON)
Analytical Data: BLACKSMITH TUNNEL: 0.014 OZ/TON AU, 1.70 OZ/TON AG
Analytical Data: HIGH SILVER ASSAY: 117.7 OZ/TON (AVG 3.44 OZ/TON). MILL LEVEL TUNNEL: 0.024 OZ/TON AU, 4.34 OZ/TON AG
Comment (Deposit): DEPOSIT IS SULFIDE-CEMENTED BRECCIATED VEINS ALONG A SHEAR ZONE. THE MAIN FRACTURES ARE ABOUT 4,000 FT LONG. DIMENSIONS ARE OF BRECCIATED ZONE. DIP GIVEN IS THAT OF EAST BORDER.
Comment (Development): IN 1902, A 20 STAMP MILL WAS CONSTRUCTED. DRILLED BY HANNA MINING CO. (1975), QUINTANA EXPLORATION CO. (1976). U.S. BORAX AND CHEMICAL CORP. (1977-1981), AND STEELHEAD GOLD (1984-1987)
Comment (Workings): DRIFTS, CROSSCUTS, AND OPEN STOPES
Comment (Deposit): PROPERTY CONSISTS OF 10 CLAIMS AND 2 FRACTIONS. MAP OF MINE WORKINGS IN MOEN (1969, PL. 7). ; INFO.SRC : 1 PUB LIT
Comment (Deposit): SEE ALSO MRDS RECORD M700409
Comment (Location): UNSURVEYED. ON WEST SIDE OF WELLS CREEK, 0.5 MI ABOVE JUNCTION WITH NOOKSACK RIVER
Comment (Reserve-Resource): MILLING TESTS SHOW THAT 85% OF THE GOLD AND SILVER CAN BE RECOVERED (MOEN).
Reference (Deposit): DERKEY, R.E., JOSEPH, N.L., AND LASMANIS, RAYMOND, 1990, METAL MINES OF WASHINGTON - PRELIMINARY REPORT: WASHINGTON DIVISION OF GEOLOGY AND EARTH RESOURCES OPEN-FILE REPORT 90-18, P. 557.
Reference (Deposit): HUNTTING, M.T., 1956, INVENTORY OF WASHINGTON MINERALS - PART II, METALLIC MINERALS: WASHINGTON DIVISION OF MINES AND GEOLOGY BULLETIN 37, P. 177.
Reference (Deposit): MOEN, W.S., 1969, MINES AND MINERAL DEPOSITS OF WHATCOM COUNTY, WASHINGTON: WASHINGTON DIVISION OF MINES AND GEOLOGY BULLETIN 57, P. 86-87.
Reference (Production): MOEN, 1969; HUNTTING, 1956; DERKEY AND OTHERS, 1990
Reference (Reserve-Resource): DERKEY AND OTHERS
Reference (Deposit): MOEN, W.S., 1976, SILVER OCCURENCES OF WASHINGTON: WASHINGTON DIVISION OF GEOLOGY AND EARTH RESOURCES BULLETIN 69, P. 160.
Reference (Deposit): GRANT, A.R., 1976, REPORT OF EVALUATION, MINERAL RESOURCE ANALYSIS STUDY ON UNITED STATES FOREST SERVICE LAND, STATE OF WASHINGTON: PREPARED FOR U.S. FOREST SERVICE - REGION 6, CONTRACT NO. 004724N, P. 26.
"Where to Find Gold in Washington" 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 at Where to Find Gold in Washington.