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

Sites Table
AIM Id Name Alternate Name District County
CC002681 MOULTON / MOLTON GROUP/COMPROMISE MONTANA/NEIHART CASCADE
MRDS AMLI MILS Latitude Longitude Datum
07-084 300130003 46.9394 -110.7333
Township Range Section QSection UTM Northing UTM Easting UTM Zone UTM Datum
14N 08E 29 DBCA 5198250 520297 12
Average Elevation Elev Units Land Owner 250K Quad 100K Quad 24K Quad
F WHITE SULPHUR WHITE SULPHUR NEIHART
Property Type Update Date Who Updated
LODE 4/27/1998 PAH
Commodities Table
Commodities Identified
LEAD
SILVER
ZINC
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: There were no tailings located at the site. There was approximately 100,000 cubic yards of waste rock. The waste rock contained arsenic, copper, and mercury. The only hazardous structures were six transformers. Two adits were discharging. The discharge associated with the large adit and dump had a flow of approximately 40 gpm and had a pH of 7.9 The other discharging adit (caved) had a flow of 15 gpm and a pH of 5.75. The MCL for cadmium, nickel, and antimony were exceeded for the second adit. The drainage from the second adit also seeped into the ground before reaching the drainage. Rock Creek flowed through the site but did not have any contaminants related to the mine drainage. The Moulton Mine is located on Rock Creek about one quarter mile east of the main street in Neihart (Robertson, 1951). A mill was built at the site but is burned down in 1921 and was not rebuilt. The vein is in pre-Beltian black mica schists and pink gneiss and ranges from 3 to 7 feet in width. Development of the mine includes two adits, a shaft that was 550 feet deep (with level every 100 feet), a 125 foot winze (from the 500 foot level), and another winze from the 625 foot level to the 700 foot level. The mine was a lead, silver, and zinc mine.
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
BRCS10H PAH 6.84 315 5/28/1998 4.2 0.44 CFS METER STREAM DOWN ROCK CREEK Y 60-11; 13 ALSO USED FOR QUEEN OF THE HILLS MINE
Screening Criteria Table
Information
Mill Tailings:
Adit Discharge: Y
Metal Leaching: Y
Water Erosion: Y
Residence:
Hazardous Materials:
Open Adit:
Visit: Y
Comments: DISCHARGE INTO ROCK CREEK; BUT NOT ACID; JEFF LONN; 5/18/98; MDSL-AMRB/PIONEER TECHNICAL (1995)
Rank Table
Information
Investigator: P. HARGRAVE
Date: 5/18/1998
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 9:43:09 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.