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No. 215 — Black CloseTownship of North Seaton, Northumberland Sheet 65 of 19thC Ordnance Map. Lat. 55° 10' 00", Long. 1° 33' 22". [ OS Grid Ref: NZ 28274 85912 (428274,585912) ] Account of Boring 150 yards Northward from the Sinking Pit in Black Close Colliery. May 22nd, 1755 Approximate surface level 70 feet above sea (Ordnance datum) Nearby BoringsImmediate Vicinity
Borings within a 2½ miles (4km) radiusIn the following table the value given for the distance (miles/kilometres) are "as the crow flies" and are provided as an indication only.
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