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

Sites Table
AIM Id Name Alternate Name District County
GR000674 POTOSI MINE PIONEER GRANITE
MRDS AMLI MILS Latitude Longitude Datum
46.4356 -113.0628
Township Range Section QSection UTM Northing UTM Easting UTM Zone UTM Datum
08N 12W 23 ADBA
Average Elevation Elev Units Land Owner 250K Quad 100K Quad 24K Quad
7480 F BUTTE PHILIPSBURG PIKES PEAK
Property Type Update Date Who Updated
LODE 6/13/1996 DMT
Agency Info Table
Information
Agency: NF
Region District: R1
Ranger District: DEERLODGE
Forest Service Tract:
Watershed Code:
Forest or Resource Area: DEERLODGE
Owner: P
Impact: L
Report: Potosi Two adits, one 20 feet long and one about 200 feet long and caved, apparently explore a 4 inch wide, N10W quartz vein in unaltered granodiorite of the Royal Stock. South Gold Creek flows around two small mine dumps of this unaltered material. Emmons and Calkins (1913) noted granite almost completely replaced by sericite, calcite, pyrite, and chalcopyrite, but no evidence of this is present today.
Mines Table
Type Condition Ground Water Photos Available? Photo Numbers Ownership Comments
A01 N PRV CONDITION OF ADIT IS UNKNOWN
A02 INTACT Y 9-32 PRV
Sample Table
Sample Id Sampler pH SC Date TempC Flow Rate Flow Units Flow Method Source Ind No Veg Stain Salt Sulf Turb Location Related to Stream Stream Sedimention Photos Available? Photo Numbers Remarks
GELS10L ARB 8.3 49.5 9/21/1993 2.6 79 GPM BUCKET STREAM N N N N N UP UNNAMED CREEK NO Y 9-21 FIELD EH-+209.7MV
GELS20L ARB 8.8 44 9/21/1993 2.9 300 GPM BUCKET STREAM N N N N N DOWN UNNAMED CREEK NO Y 9-31 FIELD EH-+200.2MV
Screening Criteria Table
Information
Mill Tailings: N
Adit Discharge: Y
Metal Leaching: Y
Water Erosion: Y
Residence: N
Hazardous Materials: N
Open Adit: Y
Visit: Y
Comments: VISITED BY MBMG GEOLOGIST: JEFF LONN IN THE SUMMER OF 1992.
Waste Table
Type Wind Erosion Veg Rill Gully Seep Pond Breach None Stability Floodplain Dist Stream Photos Available? Photo Numbers
WA01 LOW SPARSE N N N N N LIKE IN 0 Y
WA02 LOW SPARSE N N N N N LIKE NEAR 15 N
M-Mines Table
Type Latitude Longitude UTM_N UTM_E UTM_Z Size Open Length Size Open Width Elevation Elevation Units
A01 UNK
A02 UNK 5.0 FT.
Rank Table
Information
Investigator: R. MARVIN
Date: 9/14/1993
Photos Available?: Y
Access: TR
Nearest Wetlands/Bog: 3
Drainage Basin: GOLD CREEK
Water Contact Stream: Y
Nearest Surface Water Intake: 10
Number of Surface Water Intake(s) observed within 15 miles downstream:
Uses of Surface Water Intake(s) observed within 15 miles downstream: IRRIGATION;STOCK
Nearest Wells (miles): 5
Number of Wells within 4 miles: 1
Uses of Wells within 4 miles: MINING; DOMESTIC
Nearest Dwelling (miles): 10
Number of Months Occupied: 12
Number of Houses within 2 miles: 0
Recreational Usage on Site: M
Nearest Recreational Area (miles): 0.25
Name or Type of Recreational Area: GOLD CREEK LAKES
Safety Risk from Open Adit/Shaft: Y
Safety Risk from Highwall or Unstable Slopes:
Safety Risk from Unstable Structures:
Safety Risk from Chemicals:
Safety Risk from Solid Waste (includes sharp rusted items):
Safety Risk from Explosives:
Sensitive Environments within 2 miles of Site or 15 miles Downstream:
Population within 0-0.25 miles: 0
Population within 0.25-0.5 miles: 0
Population within 0.5-1 miles: 0
Population within 1-2 miles: 0
Population within 2-3 miles: 0
Population within 3-4 miles: 0
Public Interest: L

End of report. Retrieved 5/3/2024 7:23:15 PM.

The preceding materials represent the contents of the databases at the Montana Bureau of Mines and Geology at the time and date of the retrieval. The information is considered unpublished and is subject to correction and review on a daily basis. The Bureau warrants the accurate transmission of the data to the original end user at the time and date of the retrieval. Retransmission of the data to other users is discouraged and the Bureau claims no responsibility if the material is retransmitted. There may be data in the request area that are not recorded at the Bureau.