The Golden Sunlight mine is an
open pit
Open-pit mining, also known as open-cast or open-cut mining and in larger contexts mega-mining, is a surface mining technique of extracting rock or minerals from the earth from an open-air pit, sometimes known as a borrow.
This form of minin ...
gold mine Gold Mine may refer to:
* Gold Mine (board game)
*Gold Mine (Long Beach), an arena
*"Gold Mine", a song by Joyner Lucas from the 2020 album ''ADHD
Attention deficit hyperactivity disorder (ADHD) is a neurodevelopmental disorder characteri ...
in
Jefferson County,
Montana
Montana () is a state in the Mountain West division of the Western United States. It is bordered by Idaho to the west, North Dakota and South Dakota to the east, Wyoming to the south, and the Canadian provinces of Alberta, British Columb ...
, northeast of
Whitehall
Whitehall is a road and area in the City of Westminster, Central London. The road forms the first part of the A3212 road from Trafalgar Square to Chelsea. It is the main thoroughfare running south from Trafalgar Square towards Parliament Sq ...
and east of
Butte, Montana. The mine sits at an elevation of on the Bull Mountain range.
Owned and operated by
Barrick Gold, the mine has been in operation since 1975, and in 2016 produced of gold. Measured and indicated resources at December 2015 were at a gold grade of 1.46 grams per tonne.
Golden Sunlight is a conventional open-pit mine with a co-located ore treatment plant using carbon-in-pulp technology as well as sand tailings retreatment, where pyrite is gravity-separated from the cyclone underflow fraction, and reground and leached to recover gold that would otherwise be lost to tailings. In total mine operations employ approximately 150 people.
References
Barrick Gold
Gold mines in the United States
Buildings and structures in Jefferson County, Montana
Mines in Montana
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