| Deposit ID | 10038179 |
|---|---|
| MRDS ID | M045478 |
| Record type | Site |
| Current site name | Welch Ground, and Gold Point and Eagle Bend |
| Alternate or previous names | Welch Bar |
| Geographic coordinates: | -112.38914, 43.18551 (WGS84) |
|---|---|
| Elevation | 1364 |
| Location accuracy | 1000(meters) |
| Relative position | ALONG THE SNAKE RIVER PROBABLY NEAR BLACKFOOT, Estimated At Town Of Blackfoot |
Political divisions (FIPS codes)
Bingham(county)
Idaho(state)
United States(country)
North America(continent)
Land(continent)
USGS map quadrangles
Moreland(quadrangle 1:24,000 scale)
Blackfoot(quadrangle 1:100,000 scale)
Idaho Falls(quadrangle 1:250,000 scale)
Hydrologic units (watersheds)
American Falls(hydrologic unit)
Upper Snake(hydrologic accounting unit)
Upper Snake(hydrologic subregion)
Pacific Northwest(hydrologic region)
| Country | State | County |
|---|---|---|
| United States | Idaho | Bingham |
| Meridian | Township | Range | Section | Fraction | State |
|---|---|---|---|---|---|
| Boise | 002S;003S | 035E;035E | Idaho |
| Commodity | Importance |
|---|---|
| Gold | Primary |
| Platinum Critical | Secondary |
| Titanium Critical | Tertiary |
| Materials | Type of material |
|---|---|
| Gold | Ore |
| Ilmenite | Ore |
| Magnetite | Ore |
| Platinum | Ore |
| Zircon | Ore |
| Quartz | Gangue |
| Result | PT=$21.00/TON AND $5.40/TON, AU=$33.07/TON AND $405.55/TON AT 1.5 LB/TON TAILINGS AND CONCENTRATION NOT KNOWN, RESPECTIVELY. FIRST ANALYSIS RECALCULATES TO 17 PPB PT, 8.6 PPM AU. GRAVEL CARRIED $0.55/YD AU. GOLD FINENESS ABOUT 880 |
|---|
| Model code | 119 |
|---|---|
| USGS model code | 39a |
| Deposit model name | Placer Au-PGE |
| Mark3 model number | 54 |
| Host or associated | Host | ||
|---|---|---|---|
| Rock type | Unconsolidated Deposit > Sand and Gravel | ||
| |||
| (1) | -112.38914, 43.18551 |
|---|
| General form | LENSES, IRREGULAR STREAKS |
|---|---|
| Thickness | 5.49M |
| Development status | Producer |
|---|---|
| Commodity type | Metallic |
| Deposit size | Small |
| Significant | No |
| Discovery year | 1865 |
| District name | Snake River Area |
|---|
| Ownership category | Private |
|---|
| Type of workings | Surface |
|---|---|
| Area | 8.094HA |
| Agency | Database name | Acronym | Record ID | Notes |
|---|---|---|---|---|
| USGS | Mineral Resources Data System | MRDS | M045478 | |
| Idaho Geological Survey | Idaho Mines and Prospects | IMP | IF_220 | http://www.idahogeology.org/ |
ROSS, C.P., 1941, THE METAL AND COAL MINING DISTRICTS OF IDAHO, WITH NOTES ON THE NONMETALLIC MINERAL RESOURCES OF THE STATE: IDAHO BUREAU OF MINES AND GEOLOGY PAMPHLET 57, P. 100.
STALEY, W.W., 1946, GOLD IN IDAHO: IDAHO BUREAU OF MINES AND GEOLOGY PAMPHLET 68, FIG. 24.
HILL, J.M., 1916, NOTES ON THE FINE GOLD OF SNAKE RIVER, IDAHO, IN CONTRIBUTIONS TO ECONOMIC GEOLOGY 1915: U.S. GEOLOGICAL SURVEY BULLETIN 620, P. 271-294.
HITE, T.H., 1933, FINE GOLD AND PLATINUM OF SNAKE RIVER, IDAHO; ECONOMIC GEOLOGY V. 28, P. 263.
FAHRENWALD, A.W., NEWTON, JOSEPH, STALEY, W.W., AND SHAFFER, R.E., 1939, A METALLURGICAL STUDY OF IDAHO PLACER SAND: IDAHO BUREAU OF MINES AND GEOLOGY PAMPHLET 51, 10 P.
| Subject category | Comment text |
|---|---|
| Deposit | Discovery Year: 1860'S |
| Deposit | GOLD IS IRREGULARLY DISTRIBUTED AND FINE GRAINED. GRAVELS WITH THE MOST GOLD ARE USUALLY CEMENTED WITH LIME |
| Deposit | TEXT IN SHANNON (1922) SUGGESTS THAT DAY AND RICHARDS (1906) DATA MAY IN FACT BE FROM MIMADOKA AREA RATHER THAN FROM BLACKFOOT AREA. ALSO, G.A. DESBOROUGH HAS FOUND ESSENTIALLY NO PT IN SANDS FROM IDAHO FALLS TO POCATELLO (ORAL COMMUN., 1988) ; INFO.SRC : 1 PUB LIT |
| Type | Date | Name | Affiliation | Comment |
|---|---|---|---|---|
| Reporter | 01-FEB-75 | Blair, Will N. | U.S. Geological Survey | |
| Updater | 01-MAR-77 | Siefken, Robert R. (Miller, Pat) | U.S. Geological Survey | |
| Updater | 01-JAN-90 | Peterson, Jocelyn A. | U.S. Geological Survey |
Supplemental information added by qvyshift.com. Not part of the original USGS MRDS record.