Mahlo River

Prospect, Undetermined

Commodities and mineralogy

Main commodities Au
Ore minerals gold

Geographic location

Quadrangle map, 1:250,000-scale VA
Quadrangle map, 1:63,360-scale C-5
Latitude 61.6505
Longitude -145.759
Nearby scientific data Find additional scientific data near this location
Location and accuracy More than 10 miles of the Mahlo River between about 1,950 and 3,600 feet elevation are shown by Winkler and others (1981 [OFR 80-892-B], locality 114) as a placer prospect. The map coordinates are the approximate midpoint of the placer prospect in the SW1/4 section 34, T. 3 S., R. 3 W., of the Copper River Meridian.

Geologic setting

Geologic description

More than 10 miles of the Mahlo River were shown by Winkler and others (1981 [OFR 80-892-B], locality 114) as a placer gold prospect. Gold was reported to be present on Mahlo River as early as 1900 (Schrader, 1900, p. 422; Moffit, 1935, p. 36), and placer claims have been staked in this area (U.S. Bureau of Mines, 1980). Bedrock in the Mahlo River drainage includes metavolcanic and metasedimentary rocks of the McHugh Complex and metasedimentary rocks of the Valdez Group (Winkler and others, 1981 [OFR 80-892-A]). The Valdez Group hosts many gold-bearing quartz veins in the southern Valdez quadrangle.
Geologic map unit (-145.761136844981, 61.6499997418844)
Mineral deposit model Placer Au (Cox and Singer, 1986; model 39a)
Mineral deposit model number 39a
Age of mineralization Holocene.

Production and reserves

Indication of production None

References