Iias Prospect

The Iias Prospect is a copper, silver, and gold mine located in Kittitas county, Washington at an elevation of 5,899 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

Name: Iias Prospect

State:  Washington

County:  Kittitas

Elevation: 5,899 Feet (1,798 Meters)

Commodity: Copper, Silver, Gold

Lat, Long: 47.44861, -121.00917

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.


Satelite image of the Iias Prospect

Iias Prospect MRDS details

Site Name

Primary: Iias Prospect
Secondary: Williams


Commodity

Primary: Copper
Primary: Silver
Primary: Gold
Tertiary: Iron


Location

State: Washington
County: Kittitas


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 Wenatchee National Forest


Holdings

Not available


Workings

Type: Surface/Underground


Ownership

Owner Name: Riley Williams
Home Office: Yakima, Wa.
Years: 1949 -


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: Synorogenic-synvolcanic Ni-Cu


Orebody

Form: PODS


Structure

Not available


Alterations

Alteration Type: L
Alteration Text: Host Rocks Are Altered


Rocks

Not available


Analytical Data

Analytical Data: ASSAYS YIELD TR AU, 0.12 OZ/TON AG


Materials

Ore: Pyrrhotite
Ore: Magnetite
Ore: Chalcopyrite


Comments

Comment (Deposit): PODS OF SULFIDE OCCUR IN LENTICULAR SHEAR ZONES. A SILICIFIED ZONE (200 X 500 FT) IN ALTERED VOLCANIC ROCKS CONTAINS ONE 2 FT WIDE QUARTZ VEIN WITH NEGLIGIBLE MINERALIZATION

Comment (Location): ON WEST SLOPE OF MT HAWKINS ON NORTH SIDE OF CAMP CREEK

Comment (Workings): SHAFT, 3 ADITS, LARGE OPEN CUT

Comment (Geology): GEOLOGIC MAP SHOWS NO VOLCANIC ROCKS UNLESS METABASALTS OF INGALLS COMPLEX ARE IMPLIED. INGALLS COMPLEX IS AN ACCRETED OPHIOLITE


References

Reference (Deposit): FRIZZELL, V.A., JR., TABOR, R.W., BOOTH, D.B., ORT, K.M., AND WAITT, R.B., JR., 1984, PRELIMINARY GEOLOGIC MAP OF THE SNOQUALMIE PASS 1:100,000 QUADRANGLE, WASHINGTON: U.S. GEOLOGICAL SURVEY OPEN-FILE REPORT 84-693, SCALE 1:100,000.

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. 60.


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