Below is the sixth part of John Lincoln's series on the history of Cullinan (click here to view the series index). It looks at some impressive mining history and reveals the vast scale of operations at the Premier / Cullinan Mine. As always, the photos from the Cullinan Mine Archive are remarkable.
To further facilitate the supply of water to the mine, a shaft was opened on the site of a borehole, which struck water at a depth of 300 feet (90 metres) and the water continued to flow out to the surface thereafter. The dimensions of the shaft were 14 feet (4 metres) and 5 feet 6 inches (1.7 metres) and during 1904 it was sunk to a depth of 195 feet (60 metres). It was situated in the north-west corner of the pipe, in blue ground, which looked very promising and pulverised freely. At this depth the shaft was making 600 gallons per hour. It was the intention to sink the shaft to 300 feet, where the water had been struck.
By 1903 a level of 40 ft. had been attained in the open pit. In 1908 a level of 160 feet (50 metres) was being worked and when the mine closed for the first time in 1914 the depth of the mine was 310 feet (100 metres). By 1918 it had increased to 410 feet (125 metres).
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