|Current site name||Roosevelt Hills|
|Geographic coordinates:||-151.50495, 64.02157 (WGS84)|
|Relative position||The Roosevelt Hills prospects cover about 10 square miles and are situated on the southeast flank of a rounded hill, locally termed hill 1910. The approximate center of the prospect area is in SW1/4SE1/4 section 29, T. 10 S., R. 20 W., of the Fairbanks Meridian. The Kantishna River flows within 11 miles, and there is an airstrip at Lake Minchumina approximately 30 miles southwest of the prospects. The Roosevelt Hills are situated on land selected by or conveyed to Doyon, Limited and in the Denali National Preserve.|
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|Materials||Type of material|
|USGS model code||15c|
|Deposit model name||Sn greisen|
|Agency||Database name||Acronym||Record ID||Notes|
|USGS||Alaska Resource Data File||ARDF||KH005|
Cobb, E.H., 1977, Placer deposit map of central Alaska: U.S. Geological Survey Open-File Report 77-168B, 64 p., 1 map, scale 1:1,000,000.
Chapman, R.M., and Yeend, W., 1981, Geologic reconnaissance of the east half of the Kantishna River quadrangle and adjacent areas, in Albert, N.R.D., and Hudson, T., eds, The United States Geological Survey in Alaska, Accomplishments during 1979: U.S. Geological Survey Circular 823-B, 149 p.
Cobb, E.H., and Chapman, R.M., 1981, Mineral occurrences (other than mineral fuels and construction materials) in the Kantishna River and Ruby quadrangles, Alaska: U.S. Geological Survey Open-File Report 81-170, 94 p.
Bond, James, 1985, Geologic field examinations in Doyon Limited, regional selection block 9: Doyon Limited Report 85-19, 179 p. (Report held by Doyon, Ltd., Fairbanks, Alaska).
Clautice, K.H., Bowman, N.D., Clough, J.G., Gilbert, W.G., Kline, J.T., Smith, T.E., and Blodgett, R.B., 1993, Land selection Unit 8 (Kantishna River, Ruby, and Medfra quadrangles): References, lead isotope, geochemical and major oxide data: Alaska Division of Geological and Geophysical Surveys, 42 p., 1 sheet, scale 1:250,000.
Burleigh, Roger, 1989, Field report on mineral investigation of tin-granites of the Roosevelt Hills, Alaska: U.S. Bureau of Mines Field Report, 29 p.
Eakin, H.M., 1918, The Cosna-Nowitna region, Alaska: U.S. Geological Survey Bulletin 667, 54 p.
|Subject category||Comment text|
|Deposit||Model Name = Shear-hosted veining, lower portion of Sn greisen deposits(?) (Cox and Singer, 1986; model 15c).|
|Deposit||Other Comments = the Roosevelt Hills are situated on land selected by or conveyed to Doyon, Limited. For more information, contact Doyon, Limited. The site is also in Denali National Preserve.|
|Reporter||08-NOV-99||Cameron S. Rombach||Alaska Division of Geological and Geophysical Surveys|