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No. 2,484 — ButterknowleTownship of Lynesack and Softley, Durham Sheet 41 of 19thC Ordnance Map. Lat. 54° 37' 38½", Long. 1° 49' 49". [ OS Grid Ref: NZ 10956 25813 (410956,525813) ] Account of Strata passed through in a Bore-hole put down in Coke-ovens Valley about 60 yards North of the Butterknowle Fault. Commenced about 4½ fathoms below the horizon of the Brockwell Seam Approximate surface level 578 feet above sea (Ordnance datum)
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