| Deposit ID | 10072942 |
|---|---|
| MRDS ID | W018679 |
| Record type | Site |
| Current site name | Little America Mine |
| Alternate or previous names | Little America Gold Mine |
| Geographic coordinates: | -93.16829, 48.60222 (WGS84) |
|---|---|
| Elevation | 347 |
| Relative position | ABOUT 12 MILES E. OF INTERNATIONAL FALLS, MN. |
Political divisions (FIPS codes)
Koochiching(county)
Minnesota(state)
United States(country)
North America(continent)
Land(continent)
USGS map quadrangles
Island View(quadrangle 1:24,000 scale)
International Falls(quadrangle 1:100,000 scale)
International Falls(quadrangle 1:250,000 scale)
Hydrologic units (watersheds)
Rainy Lake(hydrologic unit)
Rainy(hydrologic accounting unit)
Rainy(hydrologic subregion)
Souris-Red-Rainy(hydrologic region)
Federal lands
Superior National Forest(National Forest)
National Forest FS(Type of land area)
FS(Federal land areas administered by FS)
| Country | State | County |
|---|---|---|
| United States | Minnesota | Koochiching |
| Meridian | Township | Range | Section | Fraction | State |
|---|---|---|---|---|---|
| 4th Principal | 071N | 022W | 33 | Minnesota |
| Commodity | Importance |
|---|---|
| Gold | Primary |
| Sulfur-Pyrite | Tertiary |
| Materials | Type of material |
|---|---|
| Chalcopyrite | Ore |
| Gold | Ore |
| Pyrite | Ore |
| Tourmaline | Gangue |
| Quartz | Gangue |
| Host or associated | Associated | ||||||||
|---|---|---|---|---|---|---|---|---|---|
| Rock type | Metamorphic Rock > Schist > Greenschist | ||||||||
| Rock unit name | Coutchiching (Seine Series) Biotite Schists | ||||||||
| |||||||||
| (1) | -93.16829, 48.60222 |
|---|
| Type of structure | Regional |
|---|---|
| Structure name | RAINY LAKE-SEINE RIVER FAULT |
| General form | IRREGULAR |
|---|---|
| Strike | N80E |
| Dip | S80DEG |
| Thickness | 3.05M |
| Development status | Past Producer |
|---|---|
| Commodity type | Metallic |
| Deposit size | Small |
| Significant | No |
| Discovery year | 1893 |
| Discoverer | Geo. W. Davis |
| Year of first production | 1894 |
| District name | Rainy Lake |
|---|
| Ownership category | Private |
|---|
| Type | Owner |
|---|---|
| Owner | National Park Service |
| Interest | 100 |
| Type of workings | Surface |
|---|---|
| Area | 0.004HA |
| Overall length | 12.19M |
| Overall width | 3.05M |
| Agency | Database name | Acronym | Record ID | Notes |
|---|---|---|---|---|
| USGS | Mineral Resources Data System | MRDS | W018679 |
GROUT, F.F., 1937, PETROGRAPHIC STUDY OF GOLD PROSPECTS OF MINNESOTA; ECON. GEOLOGY, V.32., P.56-68.
WINCHELL, H.V. AND GRANT, U.S., 1894,PRELIMINARY REPORT ON THE RAINY LAKE GOLD REGION., GEOL. AND NAT. HIST. SURVEY OF MINN. 23RD ANNUAL REPORT - LARGELY REPRINTED IN FINAL REPORT VOL. 4, 1895.
1894 RECON M.G.S. - H.V. WINCHELL AND U. S. GRANT
1937 OTHER M.G.S. - F. F. GROUT
SIMS, P.K. AND G.B. MOREY, ED., 1972, GEOL. OF MINN; A CENTENNIAL VOLUME., P. 172.
| Subject category | Comment text |
|---|---|
| Deposit | VEINS MAYBE CONTINOUS OR MORE LENSE-SHAPED BODIES IN A DISCONTINOUS BELT. |
| Type | Date | Name | Affiliation | Comment |
|---|---|---|---|---|
| Reporter | 01-JAN-1984 | Sutphin, David M. | U.S. Geological Survey | |
| Updater | 01-MAR-1997 | Sutphin, David M. | U.S. Geological Survey | |
| Editor | 01-MAY-1997 | Mason Jr., G.T. | U.S. Geological Survey |
Supplemental information added by qvyshift.com. Not part of the original USGS MRDS record.