Ref.: Rocks & Min.: 58:109, U.S.G.S. PP 144, "Red Gold and Tarnished Silver", by CCRMC.
An undeground copper mine consisting of two shafts just south of Calumet that worked the Kearsarge Lode. The LaSalle Mining Co. was organized in 1906 and began exploration work on the Kearsarge Lode. In 1909 it was acquired by Calumet & Hecla and then bought the Tecumseh and Caldwell properties in 1910. Actual production was from 1910 until 1920, when the mine closed for good. The mine produced approx. 8 million lbs. of refined copper. As with the Laurium Mine less than a half-mile to the north, a large variety of minerals can be found here. The site is especially popular with micro-collectors.
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Map Reference: 47°14'N , 88°27'W
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