Holmes Gulch

Mine, Inactive

Commodities and mineralogy

Main commodities Ag; Au
Other commodities Bi
Ore minerals bismuth; gold
Gangue minerals magnetite

Geographic location

Quadrangle map, 1:250,000-scale MD
Quadrangle map, 1:63,360-scale A-4
Latitude 63.213
Longitude -154.781
Nearby scientific data Find additional scientific data near this location
Location and accuracy The Holmes Gulch placer mine is located at an elevation of 750 feet (228 m) in Section 25, T. 26 S., R. 21 E., of the Kateel River Meridian. Location is known to within 250 feet (76 m).

Geologic setting

Geologic description

The Holmes Gulch placer deposit is in a steep first order stream that can be traced for about one mile (1.6 km). Gravels in Holmes Gulch were 11 ft (3.3 m) deep, and can be traced upstream 4000 ft (1,219 m) toward the Whalen shaft (MD071). Most of the mining took place at the intersection of Holmes Gulch and Hidden Creek. Boulders up to 4 ft in diameter encountered during mining. Age of mineralization is unknown, but is probably Quaternary, based on correlative geomorphological features with other dated placer deposits nearby (Bundtzen and Miller, 1997).
Geologic map unit (-154.783323302326, 63.2123913933734)
Mineral deposit model Placer Au-PGE (Cox and Singer, 1986; model 39c).
Mineral deposit model number 39c

Production and reserves

Workings or exploration Small-scale, surface-hydraulic sluicing predominated. There is no evidence that heavy machinery was employed in Holmes Gulch (Mertie, 1936). Most mining took place at the intersection of Holmes Gulch and Hidden Creek.
Indication of production Yes; small
Production notes The first recorded production from Holmes Gulch took place in 1919; mining continued intermittently until 1938. The production total for Holmes Gulch was 1,065 ounces (33 kg) gold and an unknown amount of silver.

Additional comments

See Hidden Creek (MD066).

References