Black Close Colliery

Endeavour Pit

Black Close Colliery, Endeavour Pit, sunk 1754

Shaft Details

Sunk: 1754

Approximate surface level 45 feet above sea (Ordnance datum)

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Geology encountered	Thickness		Depth
	ft.	in.	ft.	in.
Raised	4	0	4	0
Soil and stony clay	41	0	45	0
Soil and stony clay	17	0	62	0
Grey metal	10	4	72	4
Grey metal stone	12	0	84	4
White post	9	0	93	4
Black metal, mixed with coal or coal pipes	1	0	94	4
COAL, with brass lumps	2	8	97	0

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 0213 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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