|Current site name||Rainbow Gulch|
|Alternate or previous names||Rainbow Creek|
|Geographic coordinates:||-149.95333, 67.4697 (WGS84)|
|Relative position||Rainbow Gulch is a north- and west-flowing tributary to the Middle Fork Koyukuk River and is located 2 to 3 miles northwest of Minnie Creek Lake. Reed (1938) described Rainbow Creek as running a little north of west, which would coincide with the lower part of the creek. The reference point for the prospects on this creek thus has been plotted near a cabin shown on the topographic map on the lower part of the creek (sec. 35, T. 31 N., R. 11 W., of the Fairbanks Meridian). The location is accurate within a 1-mile radius.|
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|Materials||Type of material|
|USGS model code||39a|
|BC deposit profile||C01. C02|
|Deposit model name||Placer Au-PGE|
|Mark3 model number||54|
|Agency||Database name||Acronym||Record ID||Notes|
|USGS||Alaska Resource Data File||ARDF||CH031|
Mulligan, J.J., 1974, Mineral resources of the Trans-Alaska Pipeline corridor: U.S. Bureau of Mines Information Circular 8626, 24 p.
Cobb, E.H., 1976, Summary of references to mineral occurrences (other than mineral fuels and construction materials) in the Chandalar and Wiseman quadrangles, Alaska: U.S. Geological Survey Open-File Report 76-340, 205 p.
DeYoung, J.H., Jr., 1978, Mineral resources map of the Chandalar quadrangle, Alaska: U.S. Geological Survey Miscellaneous Field Studies Map MF-878-B, 2 sheets, scale 1:250,000.
Cobb, E.H., and Cruz, E.L., 1983, Summaries of data and lists of references to metallic and selected nonmetallic mineral deposits in the Chandalar quadrangle, Alaska: U.S. Geological Survey Open-File Report 83-278, 91 p.
Reed, I.M., 1938, Upper Koyukuk region, Alaska (Wiseman, Chandalar, and Bettles): Alaska Territorial Department of Mines Miscellaneous Report 194-7, 201 p
|Subject category||Comment text|
|Deposit||Model Name = Placer Au (Cox and Singer, 1986; model 39a)|
|Reporter||17-NOV-1999||J.M. Britton||U.S. Geological Survey|