Midway Prospect

The Midway Prospect is a manganese mine located in Clallam county, Washington at an elevation of 2,300 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: Midway Prospect

State:  Washington

County:  Clallam

Elevation: 2,300 Feet (701 Meters)

Commodity: Manganese

Lat, Long: 48.08389, -124.00167

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 Midway Prospect

Midway Prospect MRDS details

Site Name

Primary: Midway Prospect


Commodity

Primary: Manganese


Location

State: Washington
County: Clallam


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.


Holdings

Not available


Workings

Not available


Ownership

Owner Name: Harry Sweeds, Port Angeles, Wa.


Production

Not available


Deposit

Record Type: Site
Operation Category: Occurrence
Deposit Type: Replacement
Operation Type: Unknown
Discovery Method: Ore-Mineral In Place
Years of Production:
Organization:
Significant: N
Deposit Size: S


Physiography

General Physiographic Area: Pacific Mountain System
Physiographic Province: Pacific Border Province
Physiographic Section: Olympic Mountains


Mineral Deposit Model

Not available


Orebody

Form: POD


Structure

Not available


Alterations

Not available


Rocks

Name: Limestone
Role: Host
Age Type: Host Rock Unit
Age Young: Eocene

Name: Limestone
Role: Host
Age Type: Host Rock
Age Young: Eocene


Analytical Data

Analytical Data: A GRAB SAMPLE OF SELECT MATERIAL ASSAYED 42.8 PERCENT MN, 22.3 PERCENT SIO2, 2.9 PERCENT FE, AND 1.04 PERCENT A12O3.


Materials

Ore: Bementite


Comments

Comment (Location): 700 FEET NORTH AND 250 FEET ABOVE THE UPPER PIT ON THE HELEN CLAIM. ABOUT .3 MILE EAST OF LITTLETON CREEK AND .8 MILE NORTH OF US 101 ALONG QUAD LINE.

Comment (Deposit): THE MANGANESE EXPOSURE CONSISTS OF A POD SEVERAL FEET IN DIAMETER OF BEMENTITE AND ASSOCIATED MANGANESE OXIDES, COMPLETELY ENCLOSED BY BASALT.

Comment (Workings): UNKNOWN WORKINGS

Comment (Geology): ALTERED BASALT IS THE PRINCIPAL ROCK IN ALL EXPOSURES ON THE PROPERTY AND FORMS A CLIFF 100 FEET HIGH IN THE CENTER OF THE PROSPECT.


References

Reference (Deposit): USBM RI 5530, P. 35-36, 76


Washington Gold

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"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.