Chatham Coal Mine
Old Hartley, Seaton Valley
6 Sept 2021
This is the site of the "Chatham" coal mine. The site is shown on the First Edition Ordnance Survey map of 1865. By this time the shaft had not been used for raising some coal for sometime. It was sunk by the Delaval family - major local landowners since the Norman Conquest - initially 1784-85 and then later 1800-02. The pit was worked 1784-88 and 1802-11. The coal mine would have been used in the many industrial enterprises of the area.
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