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Colorado Creek; Willie Association Prospect, Fairbanks Mining District, Fairbanks North Star Borough, Alaska, USAi
| Regional Level Types | |
|---|---|
| Colorado Creek; Willie Association Prospect | Prospect |
| Fairbanks Mining District | Mining District |
| Fairbanks North Star Borough | Borough |
| Alaska | State |
| USA | Country |
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Latitude & Longitude (WGS84):
64° 55' 48'' North , 146° 37' 8'' West
Latitude & Longitude (decimal):
Type:
Köppen climate type:
Nearest Settlements:
| Place | Population | Distance |
|---|---|---|
| Pleasant Valley | 725 (2011) | 13.0km |
| Two Rivers | 719 (2011) | 20.8km |
| Eielson Air Force Base | 2,647 (2011) | 36.1km |
| Salcha | 1,095 (2011) | 47.1km |
Location: Colorado Creek is roughly 10 miles long and drains southwest into the Chena River. The Alaska Division of Mining Kardex file system reports the Willie Association placer claims on Colorado Creek. The approximate center of the mining activity is in NW1/4SW1/4 section 7, T. 1 N., R. 6 E., of the Fairbanks Meridian. There may be additional placer mining along Colorado Creek, but it is unclear where. It is locality 39 of Menzie and Foster (1979), who summarized relevant references under the name 'Willie Association'.
Geology: Colorado Creek flows into the Chena River. Weber and others (1978) described the bedrock in the drainage as primarily upper-greenschist to lower-amphibolite facies quartzite and schists, along with some marble, argillite and phyllite. At the headwaters of the Colorado Creek drainage there is a granodiorite to quartz monzonite pluton of Tertiary to Cretaceous age. Locally, there is an extensive cover of windblown silt and sand that ranges from 0.1 to 50 meters in thickness. Much of the ground in the swampy lowlands of the Chena River, including Colorado Creek, is permanently frozen (Foster and others, 1979). The Munzie Lode (BD027) is located in the headwaters of the Colorado Creek drainage. Menzie and Foster (1979) reported that the creek was an active gold placer claim from 1970 to 1977. The Alaska Division of Mining Kardex file system records active claims on Colorado Creek as recent as 1984.
Workings: Menzie and Foster (1979) reported that the creek was an active gold placer claim from 1970 to 1977.
Age: Quaternary
Commodities (Major) - Au
Development Status: Undetermined.
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.
Detailed Mineral List:
| ⓘ Native Gold Formula: Au |
Gallery:
List of minerals arranged by Strunz 10th Edition classification
| Group 1 - Elements | |||
|---|---|---|---|
| ⓘ | Native Gold | 1.AA.05 | Au |
List of minerals for each chemical element
| Au | Gold | |
|---|---|---|
| Au | ⓘ Native Gold | Au |
Other Databases
| Link to USGS - Alaska: | BD012 |
|---|
Other Regions, Features and Areas containing this locality
North AmericaContinent
North America PlateTectonic Plate
- North America PlatformPassive Margin
- Yukon-Tanana lower DomainDomain
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