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Boulder Agency of the Boston and Colorado Smelting Company Assay Reports (123574)

Currency:USD Category:Collectibles / Mining Start Price:150.00 USD Estimated At:300.00 - 600.00 USD
Boulder Agency of the Boston and Colorado Smelting Company Assay Reports  (123574)
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Lot of Four. Mines are located in Sunshine, Salina and Boulder. The Boston & Colorado Smelting Works were located in the town of Black Hawk, Gilpin County, Colorado, on the Clear Creek Narrow Gauge Railway, 55 miles from Denver. It was one of the first works erected for the metallurgical treatment of gold sulphuret ores. Gold, silver and copper was produced with lead if it existed, overlooked during extrac ion. The works were planned and built by Professor Nathaniel P. Hill, formerly of Brown University, Providence, Rhode Island in 1867. Hill la er became a U.S. Senator from Colorado, 1879-1885 . In 1878 the company expanded and built the Argo Smelting works in Denver. The Boston & Colorado Smelting Co. was merged into the American Smelting and Refining Company (ASARCO) in 1899 and closed in 1908.

Date: 1882
Country (if not USA):
State: Colorado
City: Boulder
Provenance:

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