Benwell Colliery

Charlotte Pit

Charlotte Pit, Benwell Colliery

Shaft Details

Approximate surface level 305 feet above sea (Ordnance datum)

Switch to measurements in: fathoms, feet & inches, or metres

Geology encountered	Thickness		Depth
	ft.	in.	ft.	in.
From surface to top of High Main Coal	48	0	48	0
COAL - High Main Seam	6	0	54	0
COAL, wrought	6	0
From High Main to top of Metal Coal	36	0	90	0
COAL - Metal Coal Seam	2	0	92	0
From Metal Coal to Sluice Coal	213	0	305	0
From Metal Coal to Sluice Coal	9	0	314	0
COAL - Sluice Coal Seam	7	0	321	0
COAL, much intermixed with bands	7	0
To top of Low Main or Benwell Main Coal	54	0	375	0
COAL - Benwell Main Coal	7	10	382	10
COAL	1	8
Band	0	4
COAL	0	8
Band	0	8
COAL	4	6
From Benwell Main Coal to Beaumont Seam	186	0	568	10
COAL - Beaumont Seam	3	4	572	2
N.B. below the above are two other seams, now working at Baker's Main Colliery, called the Low and Low Low Main Seams, June 1808	0	0	572	2

Source: An Account of the strata of Northumberland & Durham as proved by Borings & Sinkings, Volume A-B, published by the North of England Institute of Mining & Mechanical Engineers, 1878

original entry for sinking/boring number 0168 in "An Account of the strata of Northumberland & Durham as proved by Borings & Sinkings, Volume A-B, published by the North of England Institute of Mining & Mechanical Engineers, 1878"

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