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

Sites Table
AIM Id Name Alternate Name District County
GR003594 FOREST ROSE MINE DUNKLEBERG GRANITE
MRDS AMLI MILS Latitude Longitude Datum
20-004 300390147 46.5156 -113.0861
Township Range Section QSection UTM Northing UTM Easting UTM Zone UTM Datum
09N 12W 22 DBDD
Average Elevation Elev Units Land Owner 250K Quad 100K Quad 24K Quad
F BUTTE MISSOULA EAST DUNKLEBERG CREEK
Property Type Update Date Who Updated
LODE 6/12/1996 DMT
Commodities Table
Commodities Identified
LEAD
ZINC
Agency Info Table
Information
Agency: NF
Region District: R1
Ranger District: PHILIPSBURG
Forest Service Tract:
Watershed Code:
Forest or Resource Area: DEERLODGE
Owner: M
Impact: V
Report: Forest Rose The largest producer in the Dunkleburg District, the Forest Rose contains at least 3500 feet of workings over a 400 foot vertical range. The ore occurs on the nose of the north-plunging Dunkleburg Anticline where the Kootanai gastropod limestone intersects an axial plane fault zone (Popoff, 1953). Mineralization replaces the limestone and can be followed for 1000 feet along plunge. The ore contains galena, sphalerite, pyrite, quartz, and calcite, and ore mined averaged 4.0% lead, 4.0% Zn, and 3 oz/ton Ag. The grade decreases rapidly away from the crest of the fold. Both Wasa ore and Forest Rose ore were processed at the Forest Rose Mill. Combined production from both mines totalled 59 oz of gold, 153,624 oz of silver, 106 tons of copper, 1465 tons of lead, and 2540 tons of zinc (Northern Testing Laboratories, 1983). Like the Wasa, the mine was active in the early 1900's and again from 1941-1947. The main adit is caved and discharges was into the dump and tailings below. Northern Testing (1983) estimated the dump, on private land, contains 18,200 tons of .005 oz/ton gold, .4 oz/ton silver, .020% copper, .21% lead, and .63% zinc. Forest Rose Mill This 65-90 ton per day flotation mill operated from 1940-1947, and processed ore from both the Wasa and Forest Rose (Popoff, 1953). Using a detailed topographic map they created, Northern Testing (1983) calculated that the tailings were comprised of 124,500 tons of material with an avaerage grade (from 3 samples) of .017 oz/ton gold, .63 oz/ton silver, .038% copper, .377% lead, and 1.04% zinc. They noted that water from the mine discharge ran across the top of the ponds. In 1992, there was not enough mine water to make it to the tailings, but springs emerged from the base of the tailings.
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
DFRS10L OEB 7.91 381.8 9/1/1992 1 GPM BUCLET AND
DFRS20L OEB 7.35 726.2 9/1/1992 15 GPM BUCKET AND
DFRS30L OEB 7.76 519.9 9/1/1992 0.25 GPM BUCKET AND
DFRS50L 6/8/1993
Screening Criteria Table
Information
Mill Tailings: Y
Adit Discharge: Y
Metal Leaching: Y
Water Erosion: Y
Residence: N
Hazardous Materials: N
Open Adit: N
Visit: Y
Comments: LONN; 8/92
Solids Table
Sample Id Source Date Sampler Sample Type L Transect Soil Interval Indicator of contamination Path Veg Color Salt Photos Available? Photo Numbers
DFRD10L WA 6/4/1993 JPM COMP 0-6" Y N
DFRD20L WA 6/4/1993 JPM COMP 0-6" Y N
DFRD30H MI 6/4/1993 JPM COMP 0-6" Y Y
Rank Table
Information
Investigator: J. MADISON
Date: 6/4/1993
Photos Available?:
Access:
Nearest Wetlands/Bog:
Drainage Basin:
Water Contact Stream: Y
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:
Soil Chemistry Table
Sample Id Lab Id Description Project Comments
DFRD10L 93S0736 FOREST ROSE DLFORST
DFRD20L 93S0735 FOREST ROSE DLFORST
DFRD30H 93S0734 FOREST ROSE DLFORST

End of report. Retrieved 5/3/2024 9:03:59 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.