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Gjers, Mills & Co. Ltd

The Middlesbrough ironmasters recorded as working Spa Mine at Slapewath from 1872 until it closed in 1904, the mine's longest tenure.

Mines operated

MineRegionYears
Spa Mine North Yorkshire 1872–1904

Record created: 12 September 2026 · Last researched: 12 September 2026

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