The Boston Claims is a zinc, silver, and lead mine located in Skagit county, Washington at an elevation of 5,751 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: 5,751 Feet (1,753 Meters)
Commodity: Zinc, Silver, Lead
Lat, Long: 48.50056, -121.05472
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.
Boston Claims MRDS details
Site Name
Primary: Boston Claims
Commodity
Primary: Zinc
Primary: Silver
Primary: Lead
Secondary: Gold
Tertiary: Arsenic
Tertiary: Copper
Location
State: Washington
County: Skagit
District: Cascade District
Land Status
Land ownership: National Park
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 North Cascades National Park
Holdings
Not available
Workings
Type: Underground
Ownership
Owner Name: Behrens, Adolph And Sons Estate
Years: 1934 -
Production
Year: 1890
Material type: ORE AG
Description: Ap_Grade: ^8.4 Oz/Ton Ag In 8 In. Band
Deposit
Record Type: Site
Operation Category: Past Producer
Operation Type: Unknown
Year Last Production: 1895
Discovery Method: Ore-Mineral In Place
Years of Production:
Organization:
Significant: N
Deposit Size: S
Physiography
General Physiographic Area: Pacific Mountain System
Physiographic Province: Cascade-Sierra Mountains
Physiographic Section: Northern Cascade Mountains
Mineral Deposit Model
Model Name: Polymetallic veins
Orebody
Form: VEIN
Structure
Type: R
Description: Tight Folding Along North-Northwest Trending Axes
Type: L
Description: Some Faulting Across The Vein.
Alterations
Not available
Rocks
Name: Gneiss
Role: Host
Age Type: Host Rock Unit
Age Young: Late Cretaceous
Name: Gneiss
Role: Host
Age Type: Host Rock
Age Young: Late Cretaceous
Analytical Data
Analytical Data: 6 FT OF ORE ASSAYED: 0.02 OZ/TON AU, TR AG, 0.4% PB, 1.5% ZN
Analytical Data: 8 IN. CHIP SAMPLE IN ORE ACROSS BACK OF UPPER ADIT ASSAYED: 0.16 OZ/TON AU, 8.4 OZ/TON AG, 0.2% CU, 22.1% PB, 13% ZN
Materials
Ore: Galena
Ore: Chalcopyrite
Ore: Sphalerite
Ore: Pyrite
Gangue: Grossularite
Gangue: Quartz
Gangue: Calcite
Comments
Comment (Location): UNSURVEYED. NORTH SIDE OF BOSTON BASIN
Comment (Production): IN 1890S SOMETIME.
Comment (Deposit): A 6-9 FT QUARTZ VEIN IN FOLIATED DIORITE.
Comment (Deposit): 4 PATENTED CLAIMS ; INFO.SRC : 1 PUB LIT
Comment (Workings): 35 FT ADIT, 60 FT LOWER ADIT.
References
Reference (Deposit): TABOR, R.W., HARGERUD, R.A., BOOTH, D.B., AND BROWN, E.B., 199X, PRELIMINARY GEOLOGIC MAP OF THE MOUNT BAKER 30 X 60 MINUTE QUADRANGLE, WASHINGTON: U.S. GEOLOGICAL SURVEY OPEN -FILE REPORT 9X-XXX, SCALE 1:100,000 (IN PREPARATION IN 1993).
Reference (Deposit): HUNTTING, M.T., 1956, INVENTORY OF WASHINGTON MINERALS - PART II, METALLIC MINERALS: WASHINGTON DIVISION OF MINES AND GEOLOGY BULLETIN 37, V. 1, P. 231.
Reference (Deposit): MOEN, W.S., 1976, SILVER OCCURRENCES OF WASHINGTON: WASHINGTON DIVISION OF GEOLOGY AND EARTH RESOURCES BULLETIN 69, P. 161-162.
Washington Gold
"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: Where to Find Gold in Washington.
