Shafts	Index	Shafts

Geology encountered   Thickness   Depth   ft. in.   ft. in. To GreyЖs Coal thill    30  0     30  0 From GreyЖs Coal to the Jet    39  1     69  1 From Jet to the whin    9  0     78  1 To the Stone Coal thill    27  0     105  1

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 1414 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)