The mine produced up to 8,500,000 pounds (3,900,000 kg) of copper (1954) and was closed in 1957.

Due to acid mine drainage the west branch of the Ompompanoosuc River was polluted.

[1][2] The ore deposits at the Elizabeth Mine represent classic examples of sedimentary exhalative type deposition where hydrothermal fluids enter the marine environment and precipitate out minerals in a strataform ore body.

[3][4][5] The ores are hosted in the strongly deformed Lower Devonian Gile Mountain Formation (a grey to dark grey mica schist).

The ore body at the Elizabeth Mine is a massive sulfide deposit consisting primarily of pyrrhotite and chalcopyrite.