Gregory

The Gregory is a lead and zinc mine located in Jefferson county, Montana at an elevation of 5,561 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: Gregory  

State:  Montana

County:  Jefferson

Elevation: 5,561 Feet (1,695 Meters)

Primary Mineral: Lead, Zinc

Lat, Long: 46.3897, -112.11470

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 Gregory

Gregory MRDS details

Site Name

Primary: Gregory


Commodity

Primary: Lead
Primary: Zinc
Secondary: Silver
Tertiary: Gold


Location

State: Montana
County: Jefferson
District: Colorado


Land Status

Land ownership: Private
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

Type: Patented


Workings

Not available


Ownership

Owner Name: Montana Tunnels Mining Inc. (Pegasus Gold Inc) (Undg.)
Info Year: 1998

Owner Name: Idora Silver Mines Inc. (Leases The Dumps)
Home Office: Montana
Info Year: 1998

Owner Name: Helena Silver Mines, Inc.
Percent: 100.0
Home Office: Montana
Info Year: 1998


Production

Not available


Deposit

Record Type: Site
Operation Category: Past Producer
Operation Type: Underground
Mining Method: Unknown
Years of Production:
Organization:
Significant: N
Deposit Size: S


Physiography

General Physiographic Area: Rocky Mountain System
Physiographic Province: Northern Rocky Mountains


Mineral Deposit Model

Not available


Orebody

Not available


Structure

Not available


Alterations

Not available


Rocks

Not available


Analytical Data

Not available


Materials

Unknown: Sphalerite
Unknown: Quartz
Unknown: Pyrite
Unknown: Galena
Unknown: Chalcopyrite
Unknown: Arsenopyrite


Comments

Comment (Environmental Factors): EROSION OF WASTE ROCK AND TAILINGS INTO DRAINAGES WAS OCCURRING. AN OBSERVED RELEASE TO CLANCY CREEK WAS DOCUMENTED FOR LEAD. OBSERVED RELEASES TO THE UNNAMED TRIBUTARY OF CLANCY CREEK WERE DOCUMENTED FOR ARSENIC AND LEAD. THE MAXIMUM CONTAMINANT LEVEL FOR CADMIUM WAS ALSO EXCEEDED IN THIS TRIBUTARY; HOWEVER, THE EXCEEDANCE COULD NOT BE ATTRIBUTED TO THE SITE. THE UNNAMED TRIBUTARY MADE UP LESS THAN 5 PERCENT OF THE FLOW OF CLANCY CREEK AT THIS LOCATION.

Comment (Reserve-Resource): AU, AG, PB VALUES FROM MBMG BULL 16, P.50-51.(PROD. STATS.) ZN EST. BY EVALUATOR, RES. QUANT. EST. BY EVALUATOR


References

Reference (Deposit): U.S. GEOLOGICAL SURVEY PROFESSIONAL PAPER 428, P. 71-72.

Reference (Deposit): U.S. GEOLOGICAL SURVEY BULLETIN 842, 1933, P. 245.

Reference (Deposit): P. 50-51.

Reference (Deposit): MONTANA BUREAU OF MINES & GEOLOGY BULLETIN 16, 1960,

Reference (Deposit): MONTANA BUREAU OF MINES & GEOLOGY MEMOIR 31, 1950, P. 40.

Reference (Deposit): MONTANA BUREAU OF MINES & GEOLOGY IC 20, 1957, P. 21.

Reference (Deposit): PRIORITY SITES, SUMMARY REPORT, MARCH 1994, P. 5-100.

Reference (Deposit): MONTANA DEPARTMENT OF STATE LANDS. ABANDONED HARDROCK MINES


Colorized Mining Photos

Drumlummon Mine at Marysville, Montana late 1880s

Western Mining History's collection of colorized mining photos includes incredible scenes from Montana: Best Historical Photos: Colorized Mining Scenes.