Ophir Creek Mine, Ruby Mining District, Yukon-Koyukuk Census Area, Alaska, USAi
| Regional Level Types | |
|---|---|
| Ophir Creek Mine | Mine |
| Ruby Mining District | Mining District |
| Yukon-Koyukuk Census Area | Census Area |
| Alaska | State |
| USA | Country |
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Latitude & Longitude (WGS84):
64° 15' 10'' North , 155° 23' 9'' West
Latitude & Longitude (decimal):
Type:
Köppen climate type:
Nearest Settlements:
| Place | Population | Distance |
|---|---|---|
| Ruby | 165 (2017) | 54.3km |
Location: Ophir Creek is a southwest-flowing tributary of the Sulatna River and is approximately 8 miles long. Coordinates corresponding to location 25 of Cobb (1972 [MF405]) are for the approximate midpoint of placer ground, in section 30, T. 14 S., R. 18 E., Kateel River Meridian. The location is accurate.
Geology: The bedrock underlying Ophir Creek is intermediate to mafic intrusive rocks and is probably greenstone (Puchner and others, 1998). An unnamed rich gold discovery was reported along Ophir Creek in 1913 (Eakin, 1914). There was some mining in and about 1956 (Cass, 1959; Eberlein and others, 1977). Additional mining and(or) exploration occurred between 1988 and 1991 (Green and others, 1989; Bundtzen and others, 1990; Swainbank and others, 1991; Bundtzen and others, 1992).
Workings: Exploration and discovery of gold took place along Ophir Creek in 1913, and some mining took place in and about 1956 (Cass, 1959; Eberlein and others, 1977). Additional mining and(or) exploration took place between 1988 and 1991 (Green and others, 1989; Bundtzen and others, 1990; Swainbank and others, 1991; Bundtzen and others, 1992).
Age: Quaternary.
Commodities (Major) - Au
Development Status: Yes; small
Deposit Model: Placer Au (Cox and Singer, 1986; model 39a).
Select Mineral List Type
Standard Detailed Gallery Strunz Chemical ElementsCommodity List
This is a list of exploitable or exploited mineral commodities recorded at this locality.Mineral List
1 valid mineral.
Gallery:
Other Databases
| Link to USGS - Alaska: | RB028 |
|---|
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