| Quadrangle map, 1:250,000-scale | JU |
|---|---|
| Quadrangle map, 1:63,360-scale | B-2 |
| Latitude | 58.4436 |
| Longitude | -134.6487 |
| Nearby scientific data | Find additional scientific data near this location |
| Location and accuracy | This placer mine is at an elevation of 500 feet on the east side of McGinnis Creek. It is 1.2 miles west of McGinnis Mountain, and 1 mile upstream from the mouth of Montana Creek. It is near the center of the NE1/4 section 35, T. 39 S., R. 65 E. of the Copper River Meridian. The location is accurate. |
Geologic descriptionThe McGinnis Creek placer deposit was discovered in 1897 and produced an unknown quantity of gold from 1897 to 1939 (Redman and others, 1989). Hydraulic machinery, a 1,000-foot flume, a 1,500-foot cable tram, and worker housing were constructed between 1903 and 1905. Gravels were sluiced with high-pressure giant water nozzles. The claims were patented in 1917 (Roehm, 1940). Bedrock consists of black phyllite and biotite schist. The phyllite contains quartz stringers that contain pyrite and up to 0.04 ounce of gold per ton (Redman and others, 1989). | |
| Geologic map unit | (-134.650485859203, 58.4432734859309) |
|---|---|
| Mineral deposit model | Placer Au (Cox and Singer, 1986; model 39a) |
| Mineral deposit model number | 39a |
| Age of mineralization | Quaternary. |
| Workings or exploration | The McGinnis Creek placer deposit was discovered in 1897 and produced an unknown quantity of gold from 1897 to 1939. Hydraulic machinery, a 1,000-foot flume, a 1,500-foot cable tram, and worker housing were constructed between 1903 and 1905. Gravels were sluiced with high-pressure giant water nozzles. |
|---|---|
| Indication of production | Yes; small |
| Production notes | The McGinnis Creek placer deposit was discovered in 1897 and produced an unknown quantity of gold from 1897 to 1939. |
| MRDS Number | A012020 |
|---|---|
References | |
| Reporters | J.C. Barnett and L.D. Miller (Juneau, Alaska ) |
| Last report date | 12/15/2001 |