The mines of the Great Flat Lode helped to provide employment to Men (miners), women and children (Ore dressers) at a time when the rest of the Cornish Mining industry was in decline. As the copper ores became exhausted in about 1870, the mines went deeper to the high quality tin concentrations underlying the copper. This gave the mines of the Great Flat Lode a new lease of life. After some of the companies amalgamated in the late 1890's the mines continued producing until about 1918. (5 years and 3102 days ago)