Shafts	Index	Shafts

Geology encountered   Thickness   Depth   ft. in.   ft. in. To GreyЖs Coal    39  0     39  0 From GreyЖs Coal to the Jet    39  0     78  0 In Jet    0  9     78  9 From Black Jet to Stone Coal thill    26  3     105  0

Source: An Account of the strata of Northumberland & Durham as proved by Borings & Sinkings, Volume L-R, published by the North of England Institute of Mining & Mechanical Engineers, 1887

  original entry for sinking/boring number 1413 in "An Account of the strata of Northumberland & Durham as proved by Borings & Sinkings, Volume L-R, published by the North of England Institute of Mining & Mechanical Engineers, 1887"

  main page for Newbiggin Colliery (Old)