Shafts	Index	Shafts

Geology encountered   Thickness   Depth   ft. in.   ft. in. Clay    15  0     15  0 Brown post    9  0     24  0 Grey stone    24  0     48  0 COAL, foul    0  4     48  4 Blue metal    11  0     59  4 White post    33  0     92  4 COAL    3  2     95  6 Grey thill    4  0     99  6 Grey metal, with post girdles    18  0     117  6 COAL    3  1     120  7 Grey thill    2  0     122  7 Grey stone    9  0     131  7 Blue metal    2  0     133  7 Strong black stone    1  0     134  7 COAL    0  3     134  10 Grey metal, with some girdles    14  0     148  10 Grey stone    2  0     150  10 Grey metal, with some girdles    6  0     156  10 Blue metal, with girdles    5  0     161  10 Black metal    0  8     162  6 Black slate    0  4     162  10 COAL    4  5     167  3 Grey thill    3  0     170  3

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 1548 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"

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