The Seventy-Four is a gold, silver, copper, lead, and zinc mine located in Snohomish county, Washington at an elevation of 4,301 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: 4,301 Feet (1,311 Meters)
Commodity: Gold, Silver, Copper, Lead, Zinc
Lat, Long: 47.96917, -121.38500
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.
Seventy-Four MRDS details
Site Name
Primary: Seventy-Four
Commodity
Primary: Gold
Primary: Silver
Primary: Copper
Primary: Lead
Primary: Zinc
Tertiary: Antimony
Tertiary: Arsenic
Location
State: Washington
County: Snohomish
District: Monte Cristo 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: In Mount Baker National Forest
Holdings
Not available
Workings
Type: Underground
Ownership
Not available
Production
Not available
Deposit
Record Type: Site
Operation Category: Occurrence
Operation Type: Unknown
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: L
Description: Local Shearing
Alterations
Alteration Type: L
Alteration Text: Andesite Is Bleached
Rocks
Name: Andesite
Role: Host
Age Type: Host Rock Unit
Age Young: Eocene
Name: Andesite
Role: Host
Age Type: Host Rock
Age Young: Eocene
Analytical Data
Analytical Data: SEVERAL SAMPLES ANALYZED BY JOHNSON AND OTHERS. MAX VALUES ARE 1.48 OZ/TON AU, 48.4 OZ/TON AG, 0.7% CU, 22% PB, 30% ZN, 10% AS, 0.75% SB
Materials
Ore: Galena
Ore: Pyrrhotite
Ore: Sphalerite
Ore: Chalcopyrite
Ore: Stibnite
Gangue: Quartz
Comments
Comment (Location): UNSURVEYED
Comment (Reserve-Resource): INDICATED AND INFERRED, SUBECONOMIC RESERVES
Comment (Deposit): QUARTZ VEINS
Comment (Workings): ADIT
References
Reference (Deposit): JOHNSON, F.L., DENTON, D.K., IVERSON, S.R., MCCULLOCH, R.B., STEBBINS, S.A., AND STOTELMEYER, R.B., 1983, MINERAL RESOURCES OF THE GLACEIR PEAK RARE II AREA (NO. L6031), SNOHOMISH COUNTY, WASHINGTON: U.S. BUREAU OF MINES OPEN-FILE REPORT MLA 75-83, P. 7, 32.
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. 392.
Reference (Reserve-Resource): JOHNSON AND OTHERS
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.
