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Gilt Edge Montana
E. B. Coolidge\'s crew setting up leach tanks at Gilt Edge to retreat old mill tailings in 1917.
Leach tanks for processing old mine tailings at Gilt Edge
E. B. Coolidge's crew setting up leach tanks at Gilt Edge to retreat old mill tailings in 1917.
Great Northern Mining and Milling Co Cyanide Plant near Gilt Edge
150 TPD cyanide plant, including a roasting circuit, that the Great Northern Mining and Milling Co built at the Gilt Edge mine mouth in 1899-1900. This was a couple miles from the town of Gilt Edge and replaced the 1893 plant that was located adjacent to the town.
Text courtesy of Jerry Hanley
Gilt Edge Mining Companys cyanide recovery plant ca. 1893
This is the only known photo showing the Gilt Edge Mining Company's cyanide recovery plant renowned as the second cyanide plant in the US (the first was in Mercur, UT). The town of Gilt Edge was born a mere 1,000 feet SW of the mill. It was built in 1892 - 93 and attracted the attention of mining people from all over. At one time Fergus County was known in the mining world as the "cyanide capital of the west."
Text and photo courtesy of Jerry Hanley