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No. 745 — EarsdonTownship of Earsdon, Northumberland Sheet 89 of 19thC Ordnance Map. Lat. 55° 02' 38", Long. 1° 30' 18". [ OS Grid Ref: NZ 31627 72272 (431627,572272) ] Earsdon Colliery Boring Account, at Church Pit, below the High Main Coal. 1838 Approximate surface level 170 feet above sea (Ordnance datum)
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