Mineral Creek

Mine, Probably inactive

Commodities and mineralogy

Main commodities Au
Other commodities Ag
Ore minerals gold

Geographic location

Quadrangle map, 1:250,000-scale CY
Quadrangle map, 1:63,360-scale B-5
Latitude 65.29
Longitude -143.18
Nearby scientific data Find additional scientific data near this location
Location and accuracy Mineral Creek is location 4 of Cobb (1972 [MF-390]). It is a northwest-flowing tributary of Woodchopper Creek located about 4 miles from the Yukon River. Coordinates are for claims on Mineral Creek near the mouth of Alice Gulch (CY002), in section 2, T. 5 N., R. 21 E., of the Fairbanks Meridian. The location is accurate to within half a mile.

Geologic setting

Geologic description

Mineral Creek is underlain primarily by Cretaceous to Tertiary sedimentary rocks (Dover and Miyaoka, 1988). The gold is found in gravels and in weathered conglomerate bedrock (Brooks, 1907).
Claims were staked on Mineral Creek in 1898, but mining did not take place until later. Early mining occurred near the mouth of Alice Gulch. Gold assayed 925 parts Au per thousand, and 072 parts Ag per thousand (Mertie, 1938). By 1906, eighteen men were mining 7 claims, mostly by shoveling. One small hydraulic plant was also used for stripping, and three steam hoists were being operated (National Park Service, 1990). In 1906, there were three benches on the south side of the valley, with 2 to 5 feet of gravel beneath as much as 30 feet of muck. The pay streaks were in parallel channels 12 to 14 feet wide. The gold was also in weathered, iron-stained conglomerate bedrock (Brooks, 1907).
Much of the mining was done in winter, with gravel stockpiled for sluicing in the spring. By 1935, 12,000 ounces of gold had been recovered from Mineral Creek (National Park Service, 1990).
A dredge was installed on Woodchopper Creek (CY038) in 1937, and mining on Mineral Creek became less active, although Alluvial Gold drilled 92 holes in Mineral Creek gravel in 1938. They reported finding about 1 ounce of gold for every 66 cubic yards of muck and gravel (National Park Service, 1990). Mining and prospecting occurred on Mineral Creek as recently as 1986, and the area may still be active (National Park Service, 1990).
Geologic map unit (-143.182393454786, 65.2896671596352)
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
Claims were staked on Mineral Creek in 1898, but mining did not take place until later. Early mining occurred near the mouth of Alice Gulch. Nuggets assayed 925 parts Au per thousand, and 072 parts Ag per thousand (Mertie, 1938). By 1906, eighteen men were mining 7 claims, mostly by shoveling. One small hydraulic plant was also used for stripping, and three steam hoists were being operated (National Park Service, 1990). Much of the mining was done in winter, with gravel stockpiled for sluicing in the spring (National Park Service, 1990).
A dredge was installed on Woodchopper Creek (CY038) in 1937, and mining on Mineral Creek became less active, although Alluvial Gold drilled 92 holes in Mineral Creek gravel in 1938. They reported finding about 1 ounce of gold for every 66 cubic yards of muck and gravel (National Park Service, 1990). Mining and prospecting occurred on Mineral Creek as recently as 1986, and the area may still be active (National Park Service, 1990).
Indication of production Yes; small
Production notes By 1935, 12,000 ounces of gold had been removed from Mineral Creek.

Additional comments

See also Woodchopper Creek (CY038), Dome Creek (CY010), Iron Creek (CY019), and Alice Gulch (CY002). This site is within the Yukon-Charley Rivers National Preserve.

References