Ridgeway Creek

Prospect, Inactive

Commodities and mineralogy

Main commodities Au
Ore minerals gold

Geographic location

Quadrangle map, 1:250,000-scale SO
Quadrangle map, 1:63,360-scale D-5
Latitude 64.811
Longitude -164.413
Nearby scientific data Find additional scientific data near this location
Location and accuracy Ridgeway Creek is a south tributary of Lower Willow Creek (SO091). Its mouth is 2 miles upstream from the mouth of Lower Willow Creek on the Casadepaga River. This is locality 77 of Cobb (1972, MF 445; 1978, OF 78-181).

Geologic setting

Geologic description

The lower mile of Ridgeway Creek carries gold, including small nuggets (Smith, 1910), but mining has not been reported (Cobb, 1978, 78-191). The regional contact between pelitic schist of possible Cambrian or Precambrian age and a lower Paleozoic metasedimentary assemblage passes through the headwaters of Ridgeway Creek (Till and others, 1986).
Geologic map unit (-164.41561756882, 64.8102573843987)
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.

Production and reserves

Workings or exploration Prospecting was done on Ridgeway Creek prior to WW I but the unavailability of water was a handicap to early mining and none has been reported.
Indication of production None

References