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

Sites Table
AIM Id Name Alternate Name District County
MA007253 BLACK ACE TIDAL WAVE MADISON
MRDS AMLI MILS Latitude Longitude Datum
300570168 45.5347 -112.1961
Township Range Section QSection UTM Northing UTM Easting UTM Zone UTM Datum
03S 05W 34 ABDB
Average Elevation Elev Units Land Owner 250K Quad 100K Quad 24K Quad
6440 F BLM DILLON BUTTE SOUTH OLD BALDY MOUNTAIN
Property Type Update Date Who Updated
LODE 4/12/1995 JEW
Commodities Table
Commodities Identified
GOLD
LEAD
SILVER
ZINC
Agency Info Table
Information
Agency: BLM
Region District: BUTTE
Ranger District:
Forest Service Tract:
Watershed Code: 10020003
Forest or Resource Area: DILLON
Owner: B
Impact:
Report: Black Ace (MA007253) The Black Ace consists of numerous open-cuts, caved adits, a shaft, and numerous dumps. The site is situated adjacent to a dry gulch; surface disturbance is approximately 2.5 acres. Host rock is Precambrian Pony Gneiss; many different varieties of gneiss are found at this site. A 2' to 6' pegmatite dike intrudes the gneiss and is in turn displaced by 2 faults (Johns, 1961). Ore minerals included native silver and gold with iron oxides in quartz veins (Johns, 1961). Dumps and exposed cuts exhibit varying degrees of iron-oxide staining. A sample from this site assayed 0.40% lead, 0.80% zinc, 0.06% copper, 1.30 ounces silver, and 2.06 ounces gold (Johns, 1961). Information on mining history and production was not found in the literature. This dry site is located on BLM land.
Screening Criteria Table
Information
Mill Tailings: N
Adit Discharge: N
Metal Leaching: N
Water Erosion: N
Residence: N
Hazardous Materials: N
Open Adit: Y
Visit: Y
Comments: MBMG GEOLOGIST: JACK WATSON (7/17/94); PHOTOS 7-22 AND 7-23

End of report. Retrieved 4/30/2024 4:05:26 PM.

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