The data below represent everything available in the MBMG Abandoned and Inactive Mines (AIM) database.

Sites Table
AIM Id Name Alternate Name District County
GR003139 BASIN AND QUARTZ CREEK PLACERS (ALSO MRDS # DC10529) ROCK CREEK GRANITE
MRDS AMLI MILS Latitude Longitude Datum
DC11569 20-187 300390160 46.32 -113.5808
Township Range Section QSection UTM Northing UTM Easting UTM Zone UTM Datum
07N 16W 34 ACBA 5131000 299867 12
Average Elevation Elev Units Land Owner 250K Quad 100K Quad 24K Quad
F BUTTE PHILIPSBURG CORNISH GULCH
Property Type Update Date Who Updated
PLACER 7/13/1995 JMZ
Commodities Table
Commodities Identified
ABRASIVE
GOLD
Agency Info Table
Information
Agency: NF
Region District: R1
Ranger District: PHILIPSBURG
Forest Service Tract:
Watershed Code: 17010202
Forest or Resource Area: DEERLODGE
Owner: P
Impact: U
Report: Basin and Quartz Creek Placers Although this is a placer mine, it was investigated as part of this project because of extensive areas of altered bedrock have been exposed and numerous seeps and springs are scattered throughout the site. Lyden (1946) estimated that 7000 oz of gold has been produced from these drainages since 1904. Near the heads of the gulches a large Tertiary rhyolite porphyry intrusion has been emplaced in sedimentary rocks of the middle Belt carbonate unit. Although the country rock has been contact metamorphosed, the igneous rock appears to be extensively altered and it is now composed mainly of quartz, kaolinite, sericite, and 3% disseminated pyrite. Placer workings extend well upstream of the sedimentary rocks, providing further indications that the source of the placer gold is the intrusion. However, a sample of this ran less than .006 oz/ton Au, .16 oz/ton Ag, .003% Cu, .005% Pb, and .015% Zn. Nonetheless, exploration drilling was proceeding in 1992. The entire site is on private land. An extensive report on the Quartz Gulch closure (1997) is on file in the MBMG mineral property files.
Screening Criteria Table
Information
Mill Tailings: N
Adit Discharge: N
Metal Leaching: N
Water Erosion: Y
Residence: N
Hazardous Materials: N
Open Adit: N
Visit: Y
Comments: NO POSSIBLE EFFECT ON DEERLODGE NATIONAL FOREST; LONN; 9/92; HYDRAULIC SPOILS.
Placer Table
Information
Gold: Y
Silver:
Titanium:
Rare Earth Elements:
Sapphire:
Garnet:
Tungsten:
Platinum:
Magnetite:
Hematite:
Pyrite:
Commodity Ref: Lyden, C.J., 1948, The Gold Placers of Montana, MBMG Memoir 26, 152 p.
Geologic Source: Veins, breccia pipes,
Geologic Source Ref: McCulloch, Robin, Lewis, Bob, Keill, Don, and Shumaker, Matthew,, 2003, Applied gold placer exploration and evaluation techniques, MBMG Special Publication 115, 267 p.
Lag:
Transported: Y
Type Comments: May come from mineralized areas in intrusive rocks. Gulch placer. From veins, breccia pipes, diatremes (23).
Type Ref: Lyden, C.J., 1948, The Gold Placers of Montana, MBMG Memoir 26, 152 p.
Unknown:
Fine:
Coarse:
Comments:
Size Ref:
Finess: 0.734
Fineref: McCulloch, Robin, Lewis, Bob, Keill, Don, and Shumaker, Matthew,, 2003, Applied gold placer exploration and evaluation techniques, MBMG Special Publication 115, 267 p.
Spoil pile:
Wash pile:
Wash over:
Wash under:
Waste Ref:
Year Discovered:

End of report. Retrieved 5/2/2024 7:10:37 AM.

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