|Quadrangle map, 1:250,000-scale||CG|
|Quadrangle map, 1:63,360-scale||A-1|
|Nearby scientific data||Find additional scientific data near this location|
|Location and accuracy||This site is located approximately on the point between the northwest and southwest arms of Castle Bay (MacKevett and Holloway, 1977, locality 26). Site location is accurate to within 2 miles.|
Geologic descriptionThis site is described as an altered zone in Tertiary intrusive and volcanic rocks (MacKevett and Holloway, 1977). Fields (1977) reports a 3/4-square-mile color anomaly associated with a small quartz diorite body in this general area. A silt sample collected by Bear Creek Mining Company from a northeast-flowing drainage approximately 1 mile west of the site as plotted contained 138 ppm copper and 3.4 ppm molybdenum. Sparse chalcopyrite was noted in quartz diorite boulders.
|Geologic map unit||(-158.312028679315, 56.2092237488034)|
|Mineral deposit model||Porphyry copper? (Cox and Singer, 1986; model 17).|
|Mineral deposit model number||17?|
|Age of mineralization||Tertiary.|
|Workings or exploration||Bear Creek Mining Company did limited exploration at this occurrence during the period 1975-1976.|
|Indication of production||None|
Additional commentsThis site is located on land conveyed to or patented by the Bristol Bay Native Corporation.
|Reporters||S.H. Pilcher (Anchorage)|
|Last report date||2/8/2000|