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

Sites Table
AIM Id Name Alternate Name District County
CC008411 SILVER DYKE TAILINGS MONTANA/NEIHART CASCADE
MRDS AMLI MILS Latitude Longitude Datum
07-137 46.9756 -110.6953
Township Range Section QSection UTM Northing UTM Easting UTM Zone UTM Datum
14N 08E 15 BDCD
Average Elevation Elev Units Land Owner 250K Quad 100K Quad 24K Quad
F WHITE SULPHUR WHITE SULPHUR NEIHART
Property Type Update Date Who Updated
MILL 6/9/1998 PAH
Agency Info Table
Information
Agency: NF
Region District: R1
Ranger District: KINGS HILL
Forest Service Tract:
Watershed Code: 10030105
Forest or Resource Area: LEWIS AND CLARK
Owner: P
Impact: L
Report: The location of the Silver Dyke Tailings is T 14N R 8E Sec. 15. The tailings are on private ground. There are no hazardous structures or openings at the site, and there are no discharging adits, springs, or seeps. It was estimated that 56,350 cubic yards of mill tailings remain at the site, but it is unknown what the volume of the tailings was previously. The tailings were uncontained, and the dam was washed away during a failure. There was no waste rock, but there was a tailings pile that consisted of small uniform rock fragments. Sediment samples showed that arsenic, barlum, cadmlum, copper, manganese, and lead were present. Water samples also showed copper, manganese, and lead. There were not any exceedances of the drinking water standards.
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
BCCS30L PAH 6.7 71.3 5/28/1998 STREAM UP CARPENTER CREEK Y 59-24
Screening Criteria Table
Information
Mill Tailings: Y
Adit Discharge:
Metal Leaching: Y
Water Erosion: Y
Residence:
Hazardous Materials:
Open Adit:
Visit: Y
Comments: VISITED BY JEFF LONN; 5/17/98; MDSL-AMRB/PIONEER TECHNICAL REPORT (1995). PHOTOS..
Waste Table
Type Wind Erosion Veg Rill Gully Seep Pond Breach None Stability Floodplain Dist Stream Photos Available? Photo Numbers
MI01 HIGH SPARSE Y Y N N Y IN 0 Y
Rank Table
Information
Investigator: J. LONN
Date: 5/17/1998
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 5/2/2024 5:38:44 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.