|Quadrangle map, 1:250,000-scale||CH|
|Quadrangle map, 1:63,360-scale||C-5|
|Nearby scientific data||Find additional scientific data near this location|
|Location and accuracy||Limestone Creek is a south-flowing tributary to the Bettles River. The mouth of the creek is about 6 miles north of the center of Bob Johnson Lake (formerly known as Big Lake) near the center of section 29, T. 32 N., R. 8 W.|
Geologic descriptionThere is no record of mining on Limestone Creek (Kurtak and others, 2002). However, Reed (1938) reported that an 18-foot shaft was sunk near the mouth of the creek with indifferent results. Kurtak and others (2002) found remnants of a boom dam and cabin near the mouth of the creek that may indicate some unreported mining. They panned the creek at several locations for about 2 and a half miles above its mouth; none of their pans showed visible gold.
|Geologic map unit||(-149.386451511204, 67.5717944987104)|
|Mineral deposit model||Placer Au (Cox and Singer, 1986; model 39a).|
|Mineral deposit model number||39a|
|Age of mineralization||Quaternary.|
|Workings or exploration||Evidence of prospecting for placer gold near the mouth of the creek prior to 1938.|
|Indication of production||None|
|Production notes||Possibly a small amount of gold was produced in the course of prospecting but there is no recorded production and little sign of mining.|
Additional commentsThis prospect is on Doyon Ltd. selected lands; for more information, contact Doyon Ltd., Fairbanks, Alaska.
Dillon, J.T., Reifenstuhl, R.R., and, Harris, G.W., 1996, Geologic map of the Chandalar C-5 quadrangle, southeastern Brooks Range, Alaska: Alaska Division of Geological and Geophysical Surveys Professional Report 104, 2 sheets, scale 1:63,360.
Kurtak, J.M., Klieforth, R.F., Clark, J.M., and Maclean, E.A., 2002, Mineral investigations in the Koyukuk mining district, northern Alaska, 2 vols.: Bureau of Land Management, Alaska Technical Report 50, 845 p.
|Reporters||D.J. Grybeck (Contractor, U.S. Geological Survey)|
|Last report date||4/18/2010|