| Deposit ID | 10172712 |
|---|---|
| MAS/MILS ID | 0300490067 |
| Record type | Site |
| Current site name | Armstrong |
| Point of reference | Main Entrance |
|---|---|
| Geographic coordinates: | -112.28369, 46.4807 (WGS84) |
| Elevation | 1829 |
| Location accuracy | 10(meters) |
Political divisions (FIPS codes)
Lewis and Clark(county)
Montana(state)
United States(country)
North America(continent)
Land(continent)
USGS map quadrangles
Three Brothers(quadrangle 1:24,000 scale)
Butte North(quadrangle 1:100,000 scale)
Butte(quadrangle 1:250,000 scale)
Hydrologic units (watersheds)
Upper Missouri(hydrologic unit)
Upper Missouri(hydrologic accounting unit)
Missouri-Marias(hydrologic subregion)
Missouri(hydrologic region)
Federal lands
Helena-Lewis and Clark National Forest(National Forest)
National Forest FS(Type of land area)
FS(Federal land areas administered by FS)
| Country | State | County |
|---|---|---|
| United States | Montana | Lewis and Clark |
| Meridian | Township | Range | Section | Fraction | State |
|---|---|---|---|---|---|
| Montana Principal | 008 N | 005 W | 06 | NENWNW | Montana |
| Commodity | Importance |
|---|---|
| Gold | Tertiary |
| Lead | Tertiary |
| Silver | Tertiary |
| Zinc Critical | Tertiary |
| Materials | Type of material |
|---|---|
| Chalcopyrite | Unknown |
| Galena | Unknown |
| Pyrite | Unknown |
| Quartz | Unknown |
| Sphalerite | Unknown |
| Tourmaline | Unknown |
| Main Entrance (1) | -112.28369, 46.4807 |
|---|
| Strike | E00W | ||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Dip | 80N | ||||||||||||||||||||||||||
| Thickness | 30M | ||||||||||||||||||||||||||
| Length | 60M | ||||||||||||||||||||||||||
| Width | 0.6M | ||||||||||||||||||||||||||
| Area | 2HA | ||||||||||||||||||||||||||
| Depth to top | 3M | ||||||||||||||||||||||||||
| |||||||||||||||||||||||||||
| Operation type | Underground |
|---|---|
| Development status | Past Producer |
| Commodity type | Metallic |
| Significant | No |
| District name | Rimini |
|---|
| Type of mineral rights | Unknown |
|---|
| Ownership category | National Forest |
|---|
| Type of workings | Underground | ||||||||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Overall depth | 300M | ||||||||||||||||||||||||||||||||||||
| |||||||||||||||||||||||||||||||||||||
| Agency | Database name | Acronym | Record ID | Notes |
|---|---|---|---|---|
| U.S. Bureau of Mines | Minerals Availability System | MAS | 0300490067 |
MONTANA DEPT. OF STATE LANDS. ABANDONED HARDROCK MINES
PRIORITY SITES, SUMMARY REPORT, MARCH 1994, P. 5-143.
RUPPEL, 1963, U.S.GEOLOGICAL SURVEY BULLETIN 1151,P. 98.
| Subject category | Comment text |
|---|---|
| Environmental Factors | THERE WERE NO TAILINGS ASSOCIATED WITH THIS SITE. THERE WAS ONE ADIT DISCHARGE, BUT FIELD PARAMETER MEASUREMENTS INDICATED UNIMPAIRED WATER QUALITY. MINNEHAHA CREEK WAS LOCATED IN THE DRAINAGE APPROXIMATELY 3000 FEET BELOW THE LOWER MINE WORKINGS. NO WATER SAMPLES WERE COLLECTED BECAUSE OF THE DISTANCE FROM THE SITE AND LACK OF SURFACE WATER RUNOFF. SAMPLING DURING EARLY SPRING SNOW MELT/RUNOFF EVENTS COULD POSSIBLY DOCUMENT IMPACTS TO THE CREEK. XRF SCREENING OF STREAM SEDIMENTS INDICATED NO IMPACTS TO THE CREEK ATTRIBUTABLE TO THIS SITE. THERE WAS ONE HAZARDOUS MINE OPENING, THE UPPER ADIT. THERE WAS ONE RESIDENCE ON-SITE THAT APPEARED TO BE USED OCCASIONALLY FOR RECREATIONAL USE. |
| Type | Date | Name | Affiliation | Comment |
|---|---|---|---|---|
| Reporter | 23-AUG-94 | O'Brien, Mary Ann | U.S. Bureau of Mines |
Supplemental information added by qvyshift.com. Not part of the original USGS MRDS record.