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

Sites Table
AIM Id Name Alternate Name District County
JF005396 UNION ELKHORN JEFFERSON
MRDS AMLI MILS Latitude Longitude Datum
300430075 46.2908 -111.9411
Township Range Section QSection UTM Northing UTM Easting UTM Zone UTM Datum
06N 03W 11 ABCB 5126574 427508 12
Average Elevation Elev Units Land Owner 250K Quad 100K Quad 24K Quad
F WHITE SULPHUR TOWNSEND ELKHORN
Property Type Update Date Who Updated
LODE 3/30/1995 JDL
Commodities Table
Commodities Identified
LEAD
SILVER
ZINC
Agency Info Table
Information
Agency: NF
Region District: R1
Ranger District: JEFFERSON
Forest Service Tract:
Watershed Code: 10020006
Forest or Resource Area: DEERLODGE
Owner: P
Impact: L
Report: Union Much data exists in publications by the USGS (1978), Weed and Barrell (1901), Klepper and others (1957), and Roby and others (1960). The Union is a N50W 70NE replacement zone between Lodgepole limestone and Elkhorn mountain andesite near Boulder Batholith granodiorite. The zone consists of iron stained brecciated andesite, limestone, and granodiorite with lenses of siderite, ankerite, galena, sphalerite, pyrite, and azurite. It is 320 feet long and 7 feet thick, and was mined through 500 feet of workings over 365 vertical feet. Production was minimal. From 1905 to 1922 the Union produced 422 tons of ore with 11 oz of gold, 13,439 oz of silver, 1062 lbs of copper, and 75,870 lbs of lead (Roby and others, 1960). Seven samples taken by the USGS (1978) averaged a trace of gold, .5 oz/ton silver, a trace of copper, .7% lead, and .6% zinc. However, they stated that subsurface work may disclose resources, and indeed the Union has been the site of a recent extensive drilling program. All workings are dry. Roby has underground maps, long sections
Screening Criteria Table
Information
Mill Tailings: N
Adit Discharge: N
Metal Leaching: N
Water Erosion: N
Residence: N
Hazardous Materials: N
Open Adit: N
Visit: Y
Comments: LONN; 8/92

End of report. Retrieved 5/2/2024 4:52:22 PM.

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