Apex

The Apex is a gold, silver, copper, and lead mine located in King county, Washington.

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

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.

Site Name

Primary: Apex
Secondary: Bondholders Syndicate
Secondary: Apex Gold
Secondary: National Gold;

Commodity

Primary: Gold
Primary: Silver
Primary: Copper
Primary: Lead

Location

State: Washington
County: King
District: Miller River - Money Creek

Land Status

Not available

Holdings

Not available

Workings

Not available

Ownership

Not available

Production

Not available

Deposit

Record Type: Site
Operation Category: Occurrence
Deposit Type: Vein
Operation Type: Unknown
Years of Production:
Organization:
Significant: N

Physiography

General Physiographic Area: Pacific Mountain System
Physiographic Province: Cascade-Sierra Mountains
Physiographic Section: Northern Cascade Mountains

Mineral Deposit Model

Not available

Orebody

Not available

Structure

Not available

Alterations

Not available

Rocks

Name: Tonalite
Role: Host
Age Type: Host Rock
Age Young: Miocene

Analytical Data

Not available

Materials

Ore: Tetrahedrite
Ore: Galena
Ore: Sphalerite
Ore: Stibnite
Ore: Chalcopyrite
Gangue: Tourmaline
Gangue: Quartz
Gangue: Calcite
Gangue: Pyrite

Comments

Comment (Deposit): THE APEX MINE OCCURS IN ROCKS OF THE SNOQUALMIE BATHOLITH, NORTHERN PHASE, WHICH CONSISTS OF GRANODIORITE AND TONALITE AND IS LIGHT COLORED, MEDIUM CRYSTALLINE, AND MOSTLY EQUIGRANULAR AND HAS HYPIDIOMORPHIC TEXTURE. THE ROCKS ARE COARSELY JOINTED AND CONTAIN BIOTITE AND HORNBLENDE AND LOCALLY CLINOPYROXENE. AGE OF THE NORTHERN PHASE IS ABOUT 25 M.Y. BASED ON INTERPRETATION OF NUMEROUS DISCORDANT K-AR AGES OF BOTH HORNBLENDE AND BIOTITE (TABOR AND OTHERS, 1982, P. 8). ; INFO.SRC : 1 PUB LIT

Comment (Development): ECON.COM: PRODUCED 300 TONS WORTH $80,000 PRIOR TO 1901. ALSO PRODUCED ORE WORTH A TOTAL OF $300,000 FROM MINING IN 1905, 1908, 1910, 1912, 1913, 1916-1920, 1926, 1928, AND 1936-1943 (HUNTTING, 1956, P. 126). PRODUCTION FROM 1905 TO 1940 WAS VALUED AT $220,000 (MOEN, 1976, P. 166). SHIPMENTS IN 1921 AVERAGED BETWEEN 21% AND 26% AS, 18 AND 20 OZ/TON AG, 1.5 AND 2.5 OZ/TON AU, AND 4.5 AND 6% PB (LIVINGSTON, 1971, P. 163).

Comment (Location): NEAR THE HEADWATERS OF MONEY CREEK

References

Reference (Deposit): HUNTTING, M. T., 1956, INVENTORY OF WASHINGTON MINERALS-PART II, METALLIC MINERALS: WASHINGTON DIVISION OF MINES AND GEOLOGY BULLETIN 37, V. 1, 428 P.; V. 2, 67 P.

Reference (Deposit): LIVINGSTON, V.E., JR., 1971, GEOLOGY AND MINERAL RESOURCES OF KING COUNTY, WASHINGTON: WASHINGTON DIVISION OF MINES AND GEOLOGY BULLETIN 63, 200 P., 8 PL.

Reference (Deposit): MOEN, W.S., 1976, SILVER OCCURRENCES OF WASHINGTON: WASHINGTON DIVISION OF GEOLOGY AND EARTH RESOURCES BULLETIN 69, 188P.

Reference (Deposit): PATTY, E.N., 1921, THE METAL MINES OF WASHINGTON: WASHINGTON GEOLOGICAL SURVEY BULLETIN 23, 366 P.

Reference (Deposit): TABOR, R.W.; FRIZZELL, V.A., JR.; BOOTH, D.B.; WHETTEN, J.T.; WAITT, R.B.; ZARTMAN, R.E., 1982, PRELIMINARY GEOLOGIC MAP OF THE SKYKOMISH RIVER 1:100,000 QUADRANGLE, WASHINGTON: U.S. GEOLOGICAL SURVEY OPEN-FILE REPORT 82-747, 31 P., 1 PL.

Reference (Deposit): WDGER OFR 90-18

Reference (Deposit): COATS, R.R., 1932, THE ORE DEPOSITS OF THE APEX GOLD MINE, MONEY CREEK, KING COUNTY, WASHINGTON: UNIVERSITY OF WASHINGTON MASTER OF SCIENCE THESIS, 48 P., 2 PL.

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.