Mine detail: Dutch Miller

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Location:	King County, Washington, United States, North America
Lat / long:	47.55899, -121.2398
dep_id:	10055926
mrds_id:	SP00138
Commodity type:	metallic
Major mineral:	Copper, Gold, Silver
Operation type:	Unknown
Production size:	No production occurred
Development status:	Occurrence
ore:	Chalcopyrite, Galena, Sphalerite, Tetrahedrite
gangue:	Pyrite, Quartz, Siderite, Tourmaline
ore_ctrl:	Consists Of Three Parallel En Echelon Veins In Granodiorite (Huntting, 1956, P. 57). Landes And Others (1902, P. 86) Report The Ore Vein Has A Maximum Width Of 18 1/2 Ft. The Presence Of Tourmaline And The Proximity To An Area Of Extensively Explored Porphyry Copper Mineralization (Clipper Zone About 5 Miles To The Southwest) Suggest This May Be Similar Mineralization.
Reporter:	Berger, Mary A., Frank, Dave
hrock_type:	Tonalite
tectonic:	The Snoqualmie Batholith Is Part Of Early Magmatism Of The Cascade Magmatic Arc.
References:	Deposit:: WDGER OFR 90-18 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, 107 P. 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. Deposit:: LANDES, HENRY; THYNG, W.S.; LYON, D.A.; ROBERTS, MILNOR, 1902, ANNUAL REPORT OF 1901, IN SIX PARTS; PART II-THE METALLIFEROUS RESOURCES OF WASHINGTON, EXCEPT IRON; WASHINGTON GEOLOGICAL SURVEY, 123 P. 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. 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.