Windfall Creek

Mine, Inactive

Commodities and mineralogy

Main commodities Au
Ore minerals gold

Geographic location

Quadrangle map, 1:250,000-scale JU
Quadrangle map, 1:63,360-scale B-3
Latitude 58.4846
Longitude -134.7036
Nearby scientific data Find additional scientific data near this location
Location and accuracy This placer mine is on Windfall Creek, 1 mile northwest of the divide between Windfall Creek and Montana Creek. It is at an elevation of approximately 500 feet, near the old Montana Creek trail, in the NE1/4NE1/4 section 20, T. 39 S., R. 65 E. of the Copper River Meridian. The location is accurate.

Geologic setting

Geologic description

The Windfall Creek placer deposit was discovered in 1882 (Spencer, 1906) and has produced 249 ounces of gold (Redman and others, 1989). Old diversion ditches, water pipes and placer tailings lie along a 400-foot stretch of the creek. The mine area is underlain by black phyllite, felsic phyllite, greenschist, and greenstone. Gold-bearing quartz veins cut phyllite upstream near the head of Windfall Creek (JU103). The placer gravels that were worked lie in a small flat area, upstream from several small waterfalls emptying into Windfall Lake. There are abundant quartz fragments in the gravels, some with visible sulfides (Redman and others, 1989; Wells and others, 1986).
Geologic map unit (-134.705389461004, 58.4842729714491)
Mineral deposit model Placer Au (Cox and Singer, 1986; model 39a)
Mineral deposit model number 39a
Age of mineralization Quaternary.

Production and reserves

Workings or exploration The Windfall Creek placer deposit was discovered in 1882 and has produced 249 ounces of gold. Old diversion ditches, water pipes, and placer tailings lie along a 400-foot stretch of the Creek.
Indication of production Yes; small
Production notes The Windfall Creek placer deposit was discovered in 1882 and has produced 249 ounces of gold.

References