Baby Creek

Mines, Active

Commodities and mineralogy

Main commodities Au
Ore minerals gold

Geographic location

Quadrangle map, 1:250,000-scale EA
Quadrangle map, 1:63,360-scale A-1
Latitude 64.1402
Longitude -141.1716
Nearby scientific data Find additional scientific data near this location
Location and accuracy Baby Creek is a small south tributary of Squaw Gulch (see EA147). Placer workings extend for the lower mile of Baby Creek. The coordinates are the approximate midpoint of the placer workings, in section 7, T. 27 N., R. 22 E., of the Copper River Meridian. The location is accurate. Baby Creek is locality 105 of Burleigh and Lear (1994).

Geologic setting

Geologic description

The rocks in the vicinity of Baby Creek are Paleozoic amphibolite-facies gneiss, orthogneiss, schist, amphibolite, quartzite, and marble (Foster, 1969). Tertiary conglomerate with sparse interbedded sandstone occurs along the lower mile of Baby Creek.
Gravel in Baby Creek and Squaw Gulch (see EA147) is subrounded to angular; some boulders of well-rounded quartz are as much as 1.6 feet in diameter (Yeend, 1996). Three to ten feet of gravel are generally present on top of fractured, somewhat weathered, clay-rich bedrock. Values of $4 per cubic yard of gravel were recovered during mining on Baby Creek in 1991, mostly from the lower 1.6 feet of gravel (Yeend, 1996).
Small-scale mining occurred on a bench above Baby Creek in 1912 (Ellsworth and Davenport, 1913). A small open-cut operation has been active at the intersection of Squaw Gulch (see EA147) and Baby Creek from 1980 through 2000 (Bundtzen and others, 1992; Swainbank and others, 1993; Norm LaFramboise, Boundary Explorations, Inc., written communication, 2000).
Geologic map unit (-141.173870713232, 64.1398930236053)
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 Small-scale mining occurred on a bench above Baby Creek in 1912 (Ellsworth and Davenport, 1913). A small open-cut operation has been active at the intersection of Squaw Gulch (see EA147) and Baby Creek from 1980 through 2000 (Bundtzen and others, 1992; Swainbank and others, 1993; Norm LaFramboise, Boundary Explorations, Inc., written communication, 2000).
Indication of production Yes; small
Production notes Values of $4 per cubic yard of gravel were recovered during mining on Baby Creek in 1991, mostly from the lower 1.6 feet of gravel (Yeend, 1996).

References