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

Sites Table
AIM Id Name Alternate Name District County
JF007862 ROCKER BASIN JEFFERSON
MRDS AMLI MILS Latitude Longitude Datum
22-170 46.3644 -112.2461
Township Range Section QSection UTM Northing UTM Easting UTM Zone UTM Datum
07N 05W 17 AADB
Average Elevation Elev Units Land Owner 250K Quad 100K Quad 24K Quad
BUTTE BUTTE NORTH MOUNT THOMPSON
Property Type Update Date Who Updated
LODE 3/26/1997 JMC
Agency Info Table
Information
Agency: NF
Region District: R1
Ranger District: JEFFERSON
Forest Service Tract:
Watershed Code: 10020006
Forest or Resource Area: DEERLODGE
Owner: M
Impact: L
Report: Rocker Two caved adits, one short caved shaft, and several trenches appear to explore N5W-trending vein in altered quartz monzonite. The Rocker is noteworthy for the presence of some beautiful specimens of Boulder Batholith vein containing quartz, tourmaline, pyrite, sphalerite, galena, tetrahedrite, chalcopyrite, and arsenopyrite. A select sample of this material ran .092 oz/ton Au, 6.67 oz/ton Ag, and a few percent Cu, Pb, and Zn. The main adit discharges water and is probably a crosscut 100 feet to the vein. Dump size indicates about 750 feet of workings present. The dump contains about 1500 tons of quartz monzonite with abundant pyrite and 1.46 oz/ton Au (see map). Contaminated soil extends from the dump to Rocker Creek. Ownership is probably mixed private and national forest.
Assay Table
Information
Sample Id: JJRO-1
Material Type: VE
Sample Method: SELECT
Comments: VUGGY, QTZ-PYRITE-SPHAL-TETRA-CPYR-GAL-ARSENOPYR-TOURM
Mines Table
Type Condition Ground Water Photos Available? Photo Numbers Ownership Comments
A01 COLP NF
A02 COLP FLOW NF FLOW INFILTRATES BEFORE STREAM.
S01 COLP NF
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
CROS10H JCF 3.35 481.6 8/4/1992 8.2 0.84 GPM BUCKET ADIT Y Y N Y N NA SEEP NO Y
Screening Criteria Table
Information
Mill Tailings: N
Adit Discharge: Y
Metal Leaching: Y
Water Erosion: N
Residence: N
Hazardous Materials: N
Open Adit: N
Visit: Y
Comments: LONN; 7/92
Solids Table
Sample Id Source Date Sampler Sample Type L Transect Soil Interval Indicator of contamination Path Veg Color Salt Photos Available? Photo Numbers
CROD10L 8/4/1992 JCF GRAB Y Y
CROD20H 8/4/1992 JCF GRAB Y Y
Structures Table
Type Number Condition Photos Available Photo Numbers Comments
CA01 1 G Y Y
MI01 3 B Y SEVERAL STRUCTURES IN POOR REPAIR.
Waste Table
Type Wind Erosion Veg Rill Gully Seep Pond Breach None Stability Floodplain Dist Stream Photos Available? Photo Numbers
WA01 LOW BARREN Y N N N N LOW OUT 150 Y
WA02 LOW BARREN Y N N N N LOW OUT 400 N
WA03 LOW BARREN Y N N N N LOW OUT 500 N
M-Mines Table
Type Latitude Longitude UTM_N UTM_E UTM_Z Size Open Length Size Open Width Elevation Elevation Units
A01
A02
S01
Rank Table
Information
Investigator: J. MADISON
Date: 8/4/1992
Photos Available?: Y
Access: TR
Nearest Wetlands/Bog: 3
Drainage Basin: CATARACT CREEK
Water Contact Stream: Y
Nearest Surface Water Intake: 7
Number of Surface Water Intake(s) observed within 15 miles downstream: 2
Uses of Surface Water Intake(s) observed within 15 miles downstream: IRRIGATION
Nearest Wells (miles): 4
Number of Wells within 4 miles: 1
Uses of Wells within 4 miles: IRRIGATION
Nearest Dwelling (miles): 4
Number of Months Occupied: 4
Number of Houses within 2 miles: 2
Recreational Usage on Site: L
Nearest Recreational Area (miles): 6
Name or Type of Recreational Area:
Safety Risk from Open Adit/Shaft:
Safety Risk from Highwall or Unstable Slopes:
Safety Risk from Unstable Structures: Y
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: 2
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
Soil Chemistry Table
Sample Id Lab Id Description Project Comments
CROD10H 92S0691 ROCKER MINE DLFORST
CROD20H 92S0690 ROCKER MINE DLFORST

End of report. Retrieved 5/3/2024 12:07:33 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.