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No. 3,009 — ThrockleyTownship of Throckley, Northumberland Sheet 87 of 19thC Ordnance Map. Lat. 55° 00' 10", Long. 1° 46' 20". [ OS Grid Ref: NZ 14568 67610 (414568,567610) ] Account of Strata passed through in a Bore-hole in the Whin Pit, Throckley Fell, October 25th, 1775 Approximate surface level 300 feet above sea (Ordnance datum)
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