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

Sites Table
AIM Id Name Alternate Name District County
JF004886 CRYSTAL BASIN JEFFERSON
MRDS AMLI MILS Latitude Longitude Datum
22-073 300430098 46.3478 -112.2606
Township Range Section QSection UTM Northing UTM Easting UTM Zone UTM Datum
07N 05W 20 BCAA 5132891 401842 12
Average Elevation Elev Units Land Owner 250K Quad 100K Quad 24K Quad
7600 F BUTTE BUTTE NORTH BASIN
Property Type Update Date Who Updated
LODE 3/26/1995 JDL
Commodities Table
Commodities Identified
GOLD
SILVER
Agency Info Table
Information
Agency: NF
Region District: R1
Ranger District: JEFFERSON
Forest Service Tract:
Watershed Code: 10020006
Forest or Resource Area: DEERLODGE
Owner: P
Impact: V
Report: Crystal The geology of the Crystal is well described in other references (Roby and others, 1960; Ruppel, 1963; unpublished information, MBMG files), and its environmental effects have been the subject of several studies (...........). Therefore it was not studied as a part of this project, but a summary of the property is provided because it is one of the major contributors to degradation of the Cataract Creek watershed. The mine produced from underground workings and open pits from 1908 until at least the 1960s. Total production has been 22,586 tons with 3579 oz Au, 343,591 oz Ag, 536,915 lbs Cu, 2,060,623 lbs Pb, and 939,190 lbs Zn recovered (Roby and others, 1960). Two adits with 6000 feet of workings over a vertical range of 200-300 feet mined a N70-80W 70NE vein in sericitized aplite. The ore shoots were discontinuous lenses 2-30 feet wide of quartz, pyrite, arsenopyrite, galena, chalcopyrite, tetrahedrite, covellite, and chalcocite. Though no vertical zoning is evident, some zoning across the width of the shear zone was noted (Ruppel, 1963). Ore in the footwall shoots contained over 1 oz/ton Au, while in the central and hanging wall shoots gold content was negligible and silver values were higher. Several studies at Montana Tech have helped characterize the effect of the large volume of acid water emerging from the lower adit.......................
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:
Rank Table
Information
Investigator: J. LONN
Date: 6/30/1992
Photos Available?:
Access:
Nearest Wetlands/Bog:
Drainage Basin:
Water Contact Stream:
Nearest Surface Water Intake:
Number of Surface Water Intake(s) observed within 15 miles downstream:
Uses of Surface Water Intake(s) observed within 15 miles downstream:
Nearest Wells (miles):
Number of Wells within 4 miles:
Uses of Wells within 4 miles:
Nearest Dwelling (miles):
Number of Months Occupied:
Number of Houses within 2 miles:
Recreational Usage on Site:
Nearest Recreational Area (miles):
Name or Type of Recreational Area:
Safety Risk from Open Adit/Shaft:
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:
Population within 0.25-0.5 miles:
Population within 0.5-1 miles:
Population within 1-2 miles:
Population within 2-3 miles:
Population within 3-4 miles:
Public Interest:

End of report. Retrieved 5/3/2024 10:45:54 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.