| An Account of the Strata of Northumberland and Durham |
Volume: C-E, Page: 315 |
No. 823 — Etherley
Township of , Durham
Sheet 42 of 19thC Ordnance Map. Lat. , Long. .
Strata lying between the Etherley Dene Water Level Drift and the Etherley Main Seam. Borehole in Drift begun June 4th, put through Seam June 13th, 1850
Approximate surface level feet above sea (Ordnance datum)
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