Shafts	Index	Shafts

Geology encountered   Thickness   Depth   ft. in.   ft. in. No. 1 Seam at    160  6     160  6 Roof — blue metal — following stone    0  6     161  0 COAL, good    2  5     163  6 Bottom — fire clay    1  6     165  0 Further to No. 2 Seam Yard Seam    21  8     186  8 Roof — blue metal — following stone    0  6     187  2 COAL, with two bands    0  10     188  0 Band    0  2     188  2 COAL, with three bands    2  4     190  6 Bottom — fire clay    1  6     192  0 Further to No. 3 Seam, called the 5/4 Seam    31  8     223  8 Roof — blue metal — splint    2  3     225  11 COAL, good    2  1     228  0 Bottom — fire clay    0  0     228  0 Further to No. 4 Seam, called the B Seam    51  4     279  4 COAL, good    2  8     282  0 Bottom — fire clay    0  0     282  0 Further to No. 5 Seam, called the Main Coal or Brockwell Seam    56  4     338  4 COAL, good    3  8     342  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 0256 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"

  main page for Bowden Close Colliery