Pedro Zone

The Pedro Zone is a copper mine located in King county, Washington at an elevation of 4,501 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: Pedro Zone

Commodity

Primary: Copper
Secondary: Lead
Secondary: Zinc
Secondary: Molybdenum

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 Or Near Border Of Alpine Lakes Wilderness In Snoqualmie National Forest

Holdings

Not available

Workings

Not available

Ownership

Not available

Production

Not available

Deposit

Record Type: Site
Operation Category: Occurrence
Deposit Type: porphyry Cu
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: Porphyry Cu

Orebody

Name: PEDRO ZONE
Form: BRECCIA PIPE

Structure

Type: L
Structure: Shear zone
Description: Northwest-Trending Shear Zones

Alterations

Not available

Rocks

Not available

Analytical Data

Analytical Data: CHIP SAMPLES YIELDED 0.01-0.86% CU

Materials

Ore: Chalcopyrite
Ore: Galena
Ore: Pyrite
Ore: Sphalerite
Ore: Molybdenite
Gangue: Quartz

Comments

Comment (Deposit): DEPOSIT HAS BEEN GIVEN THE INFORMAL NAME OF A BRECCIA PIPE CU DEPOSIT, FOR WHICH THERE IS NO PUBLISHED MODEL. BRECCIA PIPE IS ELLIPTICAL WITH LONG AXIS TRENDING NORTH-NORTHEAST BASED ON MAP IN GUALTIERI AND OTHERS

References

Reference (Analytical Data): GUALTIERI AND OTHERS, 1973

Reference (Deposit): GUALTIERI, J.L., SIMMONS, G.C., THURBER, H.K., AND MILLER, M.S., 1973, MINERAL RESOURCES OF THE ALPINE LAKES STUDY AREA, CHELAN, KING, AND KITTITAS COUNTIES, WASHINGTON: U.S. GEOLOGICAL SURVEY OPEN-FILE REPORT 1918, P. 71-73.

Reference (Deposit): TABOR, R.W., FRIZZELL, V.A., JR., BOOTH, D.B., WHETTEN, J.T., WAITT, R.B., JR., AND 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, SCALE 1:100,000.

Reference (Deposit): U.S. GEOLOGICAL SURVEY BULLETIN 1542-E, 1989, FIG. 8, P. 93, P. 100; FIG. 11, P. 98.

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.