|Quadrangle map, 1:250,000-scale||SO|
|Quadrangle map, 1:63,360-scale||D-5|
|Nearby scientific data||Find additional scientific data near this location|
|Location and accuracy||Cahill Creek is a north tributary to Lower Willow Creek. Its mouth is at an elevation of about 500 feet, 3.3 miles upstream of the confluence of Lower Willow Creek and the Casadepaga River. This is locality 75 of Cobb (1972, MF 445; 1978, OF 78-181).|
Geologic descriptionCahill Creek has been prospected and gold was found along the lower 0.5 mile where the creek crosses benches of Lower Willow Creek (Smith, 1910).
|Geologic map unit||(-164.454619850326, 64.8182571384161)|
|Mineral deposit model||Placer Au-PGE (Cox and Singer, 1986; model 39a).|
|Mineral deposit model number||39a|
|Age of mineralization||Quaternary; the numerous incised terraces along the Casadepaga River and its major tributaries (including Lower Willow Creek) indicate that more than one cycle of erosion and deposition has developed placer deposits in the area. The low elevations between 170 and 270 feet along the first 11 miles of the river, suggest that Quaternary sea level fluctuations could have influenced placer development.|
|Workings or exploration||Surface prospecting took place on this creek prior to 1910.|
|Indication of production||Undetermined|
Cobb, E.H., 1972, Metallic mineral resources map of the Solomon quadrangle, Alaska: U.S. Geological Survey Miscellaneous Field Studies Map MF-445, 1 sheet, scale 1:250,000.
Cobb, E.H., 1978, Summary of references to mineral occurrences (other than mineral fuels and construction materials) in the Solomon quadrangle, Alaska: U.S. Geological Survey Open-File Report 78-181, 185 p.
|Reporters||Travis L. Hudson (Applied Geology)|
|Last report date||8/19/1999|