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

Sites Table
AIM Id Name Alternate Name District County
LC007296 OKER MINE / SANDBAR CREEK ADITS HEDDLESTON LEWIS AND CLARK
MRDS AMLI MILS Latitude Longitude Datum
300490270 47.0047 -112.3914
Township Range Section QSection UTM Northing UTM Easting UTM Zone UTM Datum
14N 06W 5 BAAC 5206594 394250 12
Average Elevation Elev Units Land Owner 250K Quad 100K Quad 24K Quad
5400 F NF CHOTEAU DEARBORN RIVER CADOTTE CREEK
Property Type Update Date Who Updated
LODE 8/17/1995 PAH
Commodities Table
Commodities Identified
GOLD
LEAD
SILVER
Agency Info Table
Information
Agency: NF
Region District: R1
Ranger District: LINCOLN
Forest Service Tract:
Watershed Code: 17010203
Forest or Resource Area: HELENA
Owner: N
Impact: V
Report: Oker Mine LC007296 This group of mines has affected the entirety of Sandbar Creek with orange, iron staining. Flow above the easternmost adit appears normal. There are three -possibly four- totally caved adits, none with discharges. The creek cuts across the waste dump of the middle adit; the upper and lower adits both have streamside wastes. One pile of ore sits on timbers and is apparently an attempt at an open-roasting set-up or an ore loading platform. A road has been constructed across the middle waste dump and adjacent to this area the streambed has been placered (?). A select sample along 125' of colluvium in the westernmost adit (PBLOM-1) assayed <0.0005 opt Au, 0.65 opt Ag, 0.02% Cu, 0.06% Pb, and 0.001% Zn. Another sample, a composite from the easternmost waste dump (PBLOK-2), ran 0.087 opt Au, 2.15 opt Ag, 0.05% Cu, 1.05% Pb and 0.20% Zn. This dump is adjacent (within 10 feet) to Sandbar Creek but no active erosion was noted. A third sample composited from the waste dump of the middle adit (PBOKM-1) assayed 0.006 opt Au, 0.68 opt Ag, 0.05% Cu, 0.28% Pb, and 0.03% Zn. These mines are located primarily, if not entirely, on HNF land. There is a file in the MBMG files on "Sanborn" Creek which fits the description of Sandbar Creek but the occurrence described is a manganese one and samples from the mines described above are not anomalous in manganese. The two occurrences may or may not be related.
Assay Table
Information
Sample Id: PBLOK-2
Material Type: WA
Sample Method: COMP
Comments: EASTERNMOST ADIT, VISIBLE SULFIDES.
Mines Table
Type Condition Ground Water Photos Available? Photo Numbers Ownership Comments
A01 COLP NO Y 12-04, 12-07 NF FIRST ADIT TO WEST, WITH WASTE DUMP ON SOUTH SIDE OF ROAD.
A02 COLP NO Y 12-10, 12-11, 12-12 NF TOTALLY COLLAPSED ADIT, TRENDING NORTH ON NORTH SIDE OF ROAD.
A03 COLP NO N NF SE-TRENDING ADIT, SOUTH OF SANDBAR CRK, OXIDIZED WASTE DUMP.
A04 COLP NO Y 12-08,12-09,18-11,12,13 NF FOURTH ADIT TO EAST, FAIRLY HIGH SULFIDE WASTE DUMP.
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
SOKS10M PAH 7.95 172.2 8/16/1995 8.7 66.3 GPM METER STREAM N N N N N UP SANDBAR CREEK NO Y 18-14 CLEAR; COLD WATER WITH ABUNDANT PLANT LIFE.
SOKS20M PAH 7.94 177.2 8/16/1995 9 65 GPM ESTIMATED STREAM N N N Y N DOWN SANDBAR CREEK NO Y 18-15 CLEAR; COLD WATER WITH ABUNDANT PLANT LIFE.
SOKS30H PAH 7.6 404.5 8/16/1995 10 50 GPM BUCKET STREAM N N N Y N UP SANDBAR CREEK NO Y 18-16 ABOVE CULVERT AT MIDDLE ADITS; PLANT LIFE O.K.
SOKS40H PAH 7.75 505 8/16/1995 10.4 50 GPM ESTIMATED STREAM N N N N N UP SANDBAR CREEK NO Y 18-17 APPROX 200' ABOVE WESTERNMOST ADIT; ABOVE ORANGE STAINED WATER.
SOKS50H PAH 7.27 499.4 8/16/1995 12.9 70 GPM ESTIMATED STREAM N Y N N N DOWN SANDBAR CREEK SLIGHT Y 18-18;19;20. BELOW LARGE BEAVER POND. SAMPLE VERY IRON STAINED AND LOTS OF FINE IRON-COATED SEDIMENT.
SOKSDUP PAH 7.94 177.2 8/16/1995 9 65 GPM ESTIMATED STREAM N N N Y N DOWN SANDBAR CREEK NO Y DUPLICATE OF FA SAMPLE OF SOKS20M.
Screening Criteria Table
Information
Mill Tailings: N
Adit Discharge: N
Metal Leaching: Y
Water Erosion: Y
Residence: N
Hazardous Materials: N
Open Adit: N
Visit: Y
Comments: PHOTOS 12-3;4;5;6;7;8;9;10;11;12;18 AND 18-11; THROUGH 18-20. MBMG; PHYLLIS HARGRAVE 09/07/94.
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 N Y N LOW NEAR 20 Y
WA02 MOD BARREN N N N N N LOW IN 5 Y
WA03 LOW MOD N N N N N LOW NEAR 20 N
WA04 MOD BARREN N N N N N LOW IN 5 Y
Leach Table
Sample Material Type Sample Method Comments
BOKW10H WA COMP EASTERNMOST ADIT.
BOKW20H WA COMP MIDDLE ADIT.
M-Mines Table
Type Latitude Longitude UTM_N UTM_E UTM_Z Size Open Length Size Open Width Elevation Elevation Units
A01 0.0 0.0
A02 0.0 0.0
A03 0.0 0.0
A04 0.0 0.0
Rank Table
Information
Investigator: P. HARGRAVE
Date: 8/16/1995
Photos Available?: Y
Access: IR
Nearest Wetlands/Bog: 1
Drainage Basin: SANDBAR CREEK
Water Contact Stream: Y
Nearest Surface Water Intake: 1
Number of Surface Water Intake(s) observed within 15 miles downstream: 2
Uses of Surface Water Intake(s) observed within 15 miles downstream: RECREATION
Nearest Wells (miles): 1.5
Number of Wells within 4 miles: 1
Uses of Wells within 4 miles: DOMESTIC
Nearest Dwelling (miles): 1.5
Number of Months Occupied: 12
Number of Houses within 2 miles: 1
Recreational Usage on Site: L
Nearest Recreational Area (miles): 1.2
Name or Type of Recreational Area: UNOFFICIAL CAMPSITE AT BASE OF SANDBAR CREEK.
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: NONE
Population within 0-0.25 miles: 0
Population within 0.25-0.5 miles: 0
Population within 0.5-1 miles: 0
Population within 1-2 miles: 0
Population within 2-3 miles: 1
Population within 3-4 miles: 0
Public Interest: M

End of report. Retrieved 5/1/2024 11:47:35 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.