Up for auction is a White Pine Mine Michigan 142g and Unmarked 119g Vintage / Antique Copper Ingot

From Mindat dot org:  The White Pine Mine can trace its history back to 1880 when Capt. Thomas Hooper discovered copper mineralization in an outcrop of Copper Harbor Conglomerate along the Mineral River on land owned by the St. Mary's Mineral Land Company. The location was named "White Pine" because of the stands of pine trees on the nearby hillsides. Mining began in 1880 when a shaft was sunk to 60 feet, but because of insufficient funds, work was halted. In 1881, a second shaft 170 feet deep was sunk to intersect the lode. In addition, four shallow pits were dug to explore the lode. By 1882, investors had become disinterested with what they had seen and without operating capital, the mine closed.

In 1907, Calumet and Hecla renewed interest in the locality and began an exploration program. By 1914, C&H had deepened the original No. 1 Shaft and stockpiled approximately 5,000 tons of ore from exploration work. In addition, three additional shafts were sunk by 1917. That same year, C&H began to experiment with chemical ore processing using floatation. All work was halted in 1921, for unknown reasons, and by 1929, C&H let the mine go for back taxes. During this time, approximately 18 million pounds of copper and 200,000 ounces of silver were recovered.

In later years, the Copper Range Company purchased and operated the mine, ending operations in 1995.

**One ingot is White Pine, and the unmarked ingot may or may not be related**

@oldpouralchemy

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