| Deposit ID | 10097545 |
|---|---|
| MRDS ID | A015200 |
| Record type | Site |
| Current site name | Idaho Gulch Placer |
| Related records | 10233519 |
| Geographic coordinates: | -150.91834, 65.07739 (WGS84) |
|---|---|
| Location accuracy | 250(meters) |
Political divisions (FIPS codes)
Yukon-Koyukuk(Census area)
Alaska(state)
United States(country)
North America(continent)
Land(continent)
USGS map quadrangles
Tanana A-2(quadrangle 1:63,360 scale)
Tanana SE(quadrangle 1:100,000 scale)
Tanana(quadrangle 1:250,000 scale)
Hydrologic units (watersheds)
Alaska(hydrologic region)
Federal lands
Doyon, Limited(ANCSA Region)
ANCSA Region NTVPIC(Type of land area)
NTVPIC(Federal land areas administered by NTVPIC)
| Country | State |
|---|---|
| United States | Alaska |
| Commodity | Importance |
|---|---|
| Gold | Primary |
| Tin Critical | Secondary |
| Silver | Tertiary |
| REE Critical | Tertiary |
| Materials | Type of material |
|---|---|
| Gold | Ore |
| Columbite | Gangue |
| Zircon | Gangue |
| Cassiterite | Unknown |
| Monazite | Unknown |
| Result | RECOVERY FROM SAMPLES OF TAILINGS AVERAGED 2.67 LB. CONCENTRATE PER CUBIC YD. CONTAINING 1.00 LB SN AND .02 OZ. AU. |
|---|
| Host or associated | Associated |
|---|---|
| Rock type | Plutonic Rock > Granitoid > Granite |
| Host or associated | Host |
|---|---|
| Rock type | Metamorphic Rock > Metasedimentary Rock > Quartzite |
| Host or associated | Host |
|---|---|
| Rock type | Metamorphic Rock > Phyllite |
| Host or associated | Host |
|---|---|
| Rock type | Unconsolidated Deposit > Gravel |
| Host or associated | Host |
|---|---|
| Rock type | Sedimentary Rock > Clastic Sedimentary Rock > Siltstone |
| Host or associated | Host |
|---|---|
| Rock type | Sedimentary Rock > Clastic Sedimentary Rock > Sandstone |
| Host or associated | Host |
|---|---|
| Rock type | Plutonic Rock > Granitoid > Granite |
| (1) | -150.91834, 65.07739 |
|---|
| Development status | Past Producer |
|---|---|
| Commodity type | Metallic |
| Deposit size | Small |
| Significant | No |
| Discovery year | 1907 |
| Agency | Database name | Acronym | Record ID | Notes |
|---|---|---|---|---|
| USGS | Mineral Resources Data System | MRDS | A015200 |
USGS MF-371 (A-2), LOC. 28.
USGS BULL. 1058-I, P. 369, 372, 379, 382-84, 397-98.
USBM RI 5373, P. 6-8.
| Subject category | Comment text |
|---|---|
| Deposit | GOLD AND CASSITERITE IN SMALL, DISCONTINUOUS, NOT PARTICULARLY RICH CONCENTRATIONS IN AS MUCH AS 40 FT OF GRAVEL; TOTAL DEPTH TO BEDROCK 24-85 FT. GOLD FOUND FURTHER UPSTREAM THAN CASSITERITE. |
| Deposit | STREAM GRADIENT 100 FT. PER MILE AT MOUTH AND 300 FEET PER MILE NEAR HEAD. ; INFO.SRC : 1 PUB LIT; 2 UNPUB REPT |
| Deposit | THIS SITE NAME WAS CREATED BY THE REPORTER OR OTHER USGS EMPLOYEE BASED ON PROXIMITY TO SOME MAJOR GEOGRAPHIC FEATURE. |
| Type | Date | Name | Affiliation | Comment |
|---|---|---|---|---|
| Reporter | 01-MAY-1987 | Powers, M.T. (Huber, D.F.) | U.S. Geological Survey |
Supplemental information added by qvyshift.com. Not part of the original USGS MRDS record.
These are landing pages for further research — the state agencies don't currently expose per-mine deep links.