Abandoned and Inactive Mines
The data below represent everything available in the MBMG Abandoned and Inactive Mines (AIM) database.
| AIM Id | Name | Alternate Name | District | County |
|---|---|---|---|---|
| JF005462 | ELKHORN PEAK IRON | ELKHORN IRON | ELKHORN | JEFFERSON |
| MRDS | AMLI | MILS | Latitude | Longitude | Datum |
|---|---|---|---|---|---|
| 22-359 | 300430048 | 46.3114 | -111.9247 |
| Township | Range | Section | QSection | UTM Northing | UTM Easting | UTM Zone | UTM Datum |
|---|---|---|---|---|---|---|---|
| 07N | 03W | 36 | CDBA | 5128843 | 428797 | 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 Identified |
|---|
|
COPPER GOLD IRON SILVER |
| Information |
|---|
|
Agency: NF Region District: R1 Ranger District: JEFFERSON Forest Service Tract: Watershed Code: Forest or Resource Area: DEERLODGE Owner: M Impact: L Report: Elkhorn Iron The Iron Mine was studies intensively by the USGS (1978) and also described by Roby (1960), Klepper and others (1957), and Knopf (1913). The geology of the site is characterized by limestone underlain by Elkhorn Mountain andesite, both of which have been intruded by alaskite and aplite of the Boulder Batholith. The ore exists as replacement lenses within the andesite at the NE-striking, 20-45SE-dippingcontact between the andesite and limestone. These zones are from 8 to 65 feet thick and persist for 2600 feet along strike. They consist of brecciated andesite, hematite, magnetite, garnet, pyrite, and chalcopyrite. The USGS estimated that a resource of 4.2 million tons of .03 oz/ton gold, .2 oz/ton silver, .15% copper, .06% zinc, and 28.7% iron exists here, so the property may be of interest to modern exploration companies. Most ore from the Elkhorn Iron mine was used as flux at the East Helena smelter from 1890 to 1900. Between 1908 and 1915, 256 tons were shipped for their metal content, and relinquished 10 oz of gold, 2924 oz of silver, and 190 lbs of copper. Numerous caved adits, pits, and trenches are scattered across the property. Underground workings total 1500 feet. Two of these discharge some water. Most dumps consisted of oxidized gossanous material, limestone, and calc-silicate rocks; sulfide content is low. All samples representing dump composition (USGS, 1978) had very low metal values. |
| 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| EEIS10L | JCF | 7.72 | 144.4 | 8/14/1992 | 5.36 | GPM | BUCK | ADIT | N | ||||||||||||
| EEIS20L | JCF | 8.31 | 125.4 | 8/14/1992 | 3.89 | GPM | BUCK | ADIT | N |
| Information |
|---|
|
Mill Tailings: N Adit Discharge: Y Metal Leaching: Y Water Erosion: Y Residence: N Hazardous Materials: N Open Adit: N Visit: Y Comments: LONN; 8/92 |
End of report. Retrieved 5/2/2024 1:12:11 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.