Forge Nickel-Copper Nickel Occurrence
The Forge Nickel-Copper Nickel Occurrence is near Limestone, Montana. Historically the site has been associated with the Stillwater Mining District which is now part of the Gallatin National Forest. The site was first discovered before 1932. Ore mineralization has been found at this location and the size of the deposit is estimated to be small, however the precise grade, tonnage, and extent of the mineralization are not known. There has been no production and little to no activity other than routine claim maintenance since the mineral discovery. The ore mined is composed of chalcopyrite, pyrrhotite and pentlandite with waste material consisting primarily of plagioclase and magnetite. The ore body has a lenticular or lens shaped form of unknown dimensions. The host rock in this area is peridotite from the Lower Cretaceous epoch 145.00 to 100.50 million years ago. The Middle Rocky Mountains physiographic province of the Rocky Mountain System characterize the geomorphology of the surrounding area.
Site identification and general characteristics. Learn about USGS mines.
Additional textual information about a site or mine.
DEPOSIT IS PROBABLY SIMILAR TO MOUAT. LOW GRADE.
DISCOVERY YEAR: BEFORE EARLY 1930'S
UNSURVEYED. IN GALLATIN NATIONAL FOREST. LOCATION GIVEN IS JUST NORTH OF FORGE CREEK ON WEST SIDE OF PLACER BASIN.
Formal or informal mining district names.
DIAMOND DRILLING 1967: 4 HOLES TOTALING 1, 861 FEET; 1969, 6 HOLES TOTALLING 2, 700 FEET
Processes that concentrated or enriched the mineralization of the mine.
AGE OF STILLWATER COMPLEX IS 2, 705 +/-4 MA BASED ON U-LEAD SYSTEMATICS ON ZIRCON-BADDELEYITE (PREMO AND OTHERS, 1990).
Characteristics of the ore body.
Geological materials at the site.
Geologic structural features affecting or characterizing the site or mine.
Tectonic setting in which the site or deposit is situated.
Physiographic area where the resource is found.
Mineralogical and chemical alteration at or near the site, which may help to indicate the geographic extent of the geological processes producing the mine.
Controls on emplacement of ore such as faults or other structural features.
Other deposits in the same region.
East Boulder River Chromium Occurrence
Big Mine Claims
Coors Palladium Occurrence
Chrome Mountain Nickel-Copper Nickel Occurrence
Monkey West Platinum Occurrence
Frog Pond East Rhodium Occurrence
East Boulder Plateau Prospect
Iron Mountain-Camp Nickel-Copper Deposit
Iron Mountain Nickel-Copper Camp Nickel Occurrence
* Mine bounds on map indicate the general area that a mine occupies. For an detailed map, refer to the overseeing BLM field office.
** The mine central point is based on an average of the mine's bounding box(es) and does not necessarily fall on the claim itself.
1 World-class significance is determined by total endowment of the contained commodity. This includes all past production and remaining reserves. Each commodity is considered separately and commodities cannot be combined to arrive at a significant size. The tonnage thresholds are from the mine model grade-tonnage studies. As of June 2008, many entries were classified as significant under less strict rules.
Learn more about the Bureau of Land Management, Public Land Survey System, and mining claims.
Understanding Claim Ownership
We receive lots of emails from people who find their name or a relative’s name on our site and want to know if this means they have some right to the land listed under that name.
Understanding BLM Administrative Areas
Whether it is filing a mine or researching one, the administering BLM office is going to be the definitive source.
Understanding Location Data
Mine handled by the Bureau of Land Management are not mapped by latitude and longitude, instead, these mines harken back to the Public Land Survey System.
A “township” can refer to two different things. Both are part of the PLSS measurement system but have different uses.
Join our mailing list to get alerts for mine listing updates, new features, and special opportunities.
Search for owners by first name, last name, company, location, etc.
Browse mine owners by name
Browse mine owners by location
Browse mine owners by state in the United States of America
Browse owners by category (corporation, agency, private)
Browse owners by interest relationship (partner, holder, agent, etc.)
SEE PAGE (1979) FOR GENERAL DESCRIPTION OF BASAL SERIES MINERALIZATION.