The mine was first worked as the Rancheria Mine in 1853. Was renamed the South Mayflower in 1893. It was organized in 1899 as the Bunker Hill Consolidated Mine and operated till 1922, producing $5,154,382 in gold. The shaft reached 3440’ on an incline with a winze. |
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The mine produced well even when in low grade ore, and by 1880 had a 40-stamp mill and a chlorination plant in place. The mine was worked intermittently up to the 1890s, but became idle long enough that the main shaft caved in and the chlorination plant fell into disrepair. In 1893 operations resumed as the mine was reopened, brought back into working order, and renamed the South Mayflower. |
The Bunker Hill Consolidated Mining Company organized in 1899 and worked the mine continuously until selling the property in 1922. Little milling or prospecting was done by the new mine owners, with the last of the work being done in 1925. Several known ore bodies had been documented, but remained unmined at the time of closure. The Bunker Hill mine had a estimated total production of 250,000 ounces of gold. |
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