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No. 1,092 — HeatonTownship of Heaton, Northumberland Sheet 88 of 19thC Ordnance Map. Lat. 54° 59' 45", Long. 1° 34' 58". [ OS Grid Ref: NZ 26689 66893 (426689,566893) ] Account of Boring in the E Pit, Heaton. January, 1801 Approximate surface level 209 feet above sea (Ordnance datum)
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