Dutch Miller

The Dutch Miller is a copper mine located in King county, Washington at an elevation of 5,699 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

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: Dutch Miller
Secondary: Middle Fork

Commodity

Primary: Copper
Secondary: Gold
Secondary: Silver
Secondary: Lead
Secondary: Zinc
Tertiary: Arsenic
Tertiary: Antimony

Location

State: Washington
County: King
District: Snoqualmie District

Land Status

Land ownership: National Wilderness
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 Alpine Lakes Wilderness In Snoqualmie National Forest

Holdings

Not available

Workings

Type: Surface/Underground

Ownership

Owner Name: Mine Evaluation, Inc.
Years: 1990 -

Owner Name: A. B. Crain Cascade Development Co.
Home Office: Seattle, WA
Years: 1942 -

Production

Not available

Deposit

Record Type: Site
Operation Category: Producer
Operation Type: Unknown
Discovery Year: 1896
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: Porphyry Cu

Orebody

Form: VEINS, BRECCIA ZONE

Structure

Type: L
Description: En Echelon Fractures

Alterations

Alteration Type: L
Alteration Text: Potassic, Phyllic, Propylitic

Rocks

Name: Diorite
Role: Host
Age Type: Host Rock Unit
Age Young: Miocene

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

Analytical Data

Analytical Data: ALSO OTHER ANALYSES IN THIS REFERENCE)
Analytical Data: ANALYSES SHOW 2->10 OZ/TON AG (GUALTIERI AND OTHERS

Materials

Ore: Galena
Ore: Tetrahedrite
Ore: Pyrite
Ore: Chalcopyrite
Ore: Sphalerite
Gangue: Quartz
Gangue: Siderite
Gangue: Dumortierite
Gangue: Chlorite

Comments

Comment (Production): SEVERAL SHIPMENTS BEFORE 1901

Comment (Reserve-Resource): ESTIMATES REPRESENTS HIGH-GRADE ORE ON DUMP AND OLD UNDERGROUND WORKINGS

Comment (Workings): 2 SHAFTS, 3 ADITS, OPEN PIT

Comment (Development): THE PROPERTY'S SMALL TONNAGE IS INSUFFICIENT TO JUSTIFY BUILDING ROADS INTO THE SITE (GRANT, 1976). EXPLORATION OF UNDISCLOSED NATURE WAS UNDERWAY IN 1990

Comment (Deposit): PROPERTY HAS A HIGH GRADE CU LENS. THERE ARE THREE PARALLEL EN-ECHELON VEINS IN GRANODIORITE, ONE OF WHICH IS REPORTEDLY 18.5 FT WIDE

Comment (Geology): PROXIMITY TO AND SIMILARITY TO CLIPPER PORPHYRY COPPER SUGGEST THAT THIS DEPOSIT IS ALSO A PORPHYRY COPPER

Comment (Location): AT HEAD OF MIDDLE FORK OF SNOQUALMIE RIVER

References

Reference (Deposit): PURDY, C.P., JR., 1951, ANTIMONY OCCURRENCES OF WASHINGTON: WASHINGTON DIVISION OF MINES AND GEOLOGY BULLETIN 39, P. 160.

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. 57

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. 115.

Reference (Deposit): GRANT, A.R., 1969, CHEMICAL AND PHYSICAL CONTROLS FOR BASE METAL DEPOSITION IN THE CASCADE RANGE OF WASHINGTON: WASHINGTON DIVISION OF MINES AND GEOLOGY BULLETIN 58, P. 81-85.

Reference (Deposit): HOLLISTER, V.F., 1979, PORPHYRY COPPER-TYPE DEPOSITS OF THE CASCADE VOLCANIC ARC, WASHINGTON: MINERALS SCIENCE AND ENGINEERING, V. 11, P. 32.

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. 48.

Reference (Deposit): GUALTIERI, J.L., SIMMONS, G.C., THURBER, H.K., AND MILLER, M.S., 1973, MINERAL RESOURCES OF THE ALPINE LAKES STUDY AEA, CHELAN, KING, AND KITTITAS COUNTIES, WASHINGTON: U.S. GEOLOGICAL SURVEY OPEN-FILE REPORT 1918, P. 54, 56, 58, 78-80.

Reference (Deposit): GUALTIERI, J.L., THURBER, H.K., MILLER, M.S., MCMAHAN, A.B., AND FEDERSPEIL, F.F., 1975, MINERAL RESOURCES OF ADDITIONS TO THE ALPINE LAKES STUDY AREA, CHELAN, KING, AND KITTITAS COUNTIES, WASHINGTON: U.S. GEOLOGICAL SURVEY OPEN-FILE REPORT 75-3, P. 140.

Reference (Deposit): JOSEPH, N.L., 1991, WASHINGTON'S MINERAL INDUSTRY - 1990: WASHINGTON GEOLOGY, V. 19, NO. 1, P. 3-24.

Reference (Reserve-Resource): GUALTIERI AND OTHERS, 1973

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.