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

Sites Table
AIM Id Name Alternate Name District County
MA006902 SNYDER'S MINE SOUTH BOULDER MADISON
MRDS AMLI MILS Latitude Longitude Datum
29-279 300570258 45.5983 -112.0956
Township Range Section QSection UTM Northing UTM Easting UTM Zone UTM Datum
03S 04W 4 DDCB
Average Elevation Elev Units Land Owner 250K Quad 100K Quad 24K Quad
8800 F DILLON BUTTE SOUTH NOBLE PEAK
Property Type Update Date Who Updated
LODE 4/8/1995 JDL
Agency Info Table
Information
Agency: NF
Region District: R1
Ranger District: JEFFERSON
Forest Service Tract:
Watershed Code: 10020005
Forest or Resource Area: DEERLODGE
Owner: N
Impact:
Report: Snyder This has been the only productive mine in the proposed Tobacco Root-Middle Mountain Wilderness area, so was the subject of a detailed investigation by O'Neill and others (1983). The mine follows a west-striking, south dipping quartz-pyrite-copper carbonate vein within a shear zone 3.3 feet thick enclosed in Archean gneiss. The vein is at least 760 feet long, and is explored by approximately 1500 feet of workings from 5 portals. Production in 1934 was 10 oz of gold, 75 oz of silver, and 326 lbs of copper. A stockpile sample carried .641 oz/ton gold, 6 oz/ton silver, and .46% copper. Presently there are two substantial discharges from the lowermost adits. However, the dumps are composed of unaltered gneiss with no visible sulfides, and dump samples showed no to a trace of metals (O'Neill and others, 1983). The Snyder Mine is located at the head of the west fork of the South Boulder River in the Tobacco Root Mountains. Mining consisted of exploiting gold in quartz veins with little or no sulfides present. The mine consists of at least four adits. The lowest adit is comprised of two openings, both of which discharge water. Both discharges sink into the dump and re-appear at the base and discharge into the main stream. Up-stream of the confluence of the adit discharge and the main stream is a fifth, un-identified adit. While there is no discharge directly out of the adit, the main stream runs along toe of the dump and may be influenced by the mine. JSNS10L: Located at the discharge point of the south caved adit. The sample will be analyzed for Dissolved Metals only. Discharge will be measured by the dam-pipe-bucket stopwatch method. JSNS20L: Located at the discharge point of the north caved adit. The sample will be analyzed for Dissolved Metals only. Discharge will be measured by the dam-pipe-bucket stopwatch method. JSNS30L: Located below the confluence of the adit discharge streams and the main stream. The sample will be analyzed for Dissolved Metals and Total Recoverable Metals. Discharge will be measured by the dam-pipe-bucket stopwatch method. JSNS40L: Located on the main stream below the un-identified adit and above the road crossing. The sample will be analyzed for Dissolved Metals and Total Recoverable Metals. Discharge will be measured by the dam-pipe-bucket stopwatch method.
Mines Table
Type Condition Ground Water Photos Available? Photo Numbers Ownership Comments
A01 COLP FLOW Y JSN1 NF SOUTH ADIT
A02 COLP FLOW Y JSN1 NF NORTH ADIT
A03 COLP NO N NF
A04 COLP NO N NF
A05 COLP NO N NF
A06 COLP NO N JSN2 NF NORTH OF FLOWING ADITS
P01 COLP NO N NF PIT ABOVE UPPER ADIT
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
JSNS10L ORB 8.24 165.7 9/9/1992 4.3 9.23 GPM BUCKET ADIT N N N N N DOWN W.F.S. BOULDER RIVER NO Y JSN1 SOUTH ADIT DISCHARGE
JSNS20L ORB 8.32 171.4 9/9/1992 6 40 GPM BUCKET ADIT N N N N N DOWN W.F.S. BOULDER RIVER NO Y JSN1 NORTH ADIT DISCHARGE
JSNS30L ORB 8.71 175 9/9/1992 9 15.38 GPM BUCKET STREAM N N N N N DOWN W.F.S. BOULDER RIVER NO Y JSN1 DOWNSTREAM OF SITE
JSNS40L ORB 7.54 182 9/9/1992 6.2 1.5 GPM BUCKET STREAM N N N N N DOWN W.F.S. BOULDER RIVER NO Y JSN1 BELOW NORTH DRY ADIT
Screening Criteria Table
Information
Mill Tailings: N
Adit Discharge: Y
Metal Leaching: N
Water Erosion: N
Residence: N
Hazardous Materials: N
Open Adit: Y
Visit: Y
Comments: LONN; 8/92
Waste Table
Type Wind Erosion Veg Rill Gully Seep Pond Breach None Stability Floodplain Dist Stream Photos Available? Photo Numbers
WA01 LOW MOD N N Y N N LOW IN 0 Y
WA02 LOW MOD N N N N N IN 0 Y
WA03 LOW MOD N N N N N LOW OUT 100 N
WA04 LOW MOD N N N N N LOW OUT 200 N
WA05 LOW MOD N N N N N LOW OUT 800 N
M-Mines Table
Type Latitude Longitude UTM_N UTM_E UTM_Z Size Open Length Size Open Width Elevation Elevation Units
A01 45.598333333333 -112.095555555556 4 4 8700 F
A02 45.598333333333 -112.095555555556 4 4 8700 F
A03 45.598333333333 -112.095555555556 4 4 8800 F
A04 45.598333333333 -112.095555555556 4 4 8950 F
A05 45.598333333333 -112.095555555556 4 4 9250 F
A06 45.598333333333 -112.095555555556 4 4 8600 F
P01 45.598333333333 -112.095555555556 6 6 9300 F
Rank Table
Information
Investigator: J. METESH
Date: 9/9/1992
Photos Available?:
Access: 4W
Nearest Wetlands/Bog: 1
Drainage Basin: S. BOULDER R.
Water Contact Stream: Y
Nearest Surface Water Intake: 8
Number of Surface Water Intake(s) observed within 15 miles downstream: 5
Uses of Surface Water Intake(s) observed within 15 miles downstream: IRRIGATION
Nearest Wells (miles): 6
Number of Wells within 4 miles: 12
Uses of Wells within 4 miles: DOMESTIC
Nearest Dwelling (miles): 6
Number of Months Occupied: 12
Number of Houses within 2 miles: 12
Recreational Usage on Site: M
Nearest Recreational Area (miles): 2
Name or Type of Recreational Area: GENERAL
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 4/30/2024 7:24:25 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.