Shafts	Index	Shafts

Geology encountered   Thickness   Depth   ft. in.   ft. in. Brown metal, with beds of blue    16  4     16  4 White post, with whin girdles    42  8     59  0 Blue stone, tender, with white post girdles    27  0     86  0 Strong white post    2  11     88  11 Blue stone, tender    1  0     90  0 COAL - Maudlin Seam    0  11     90  11 Black metal stone    0  5     91  4 Grey metal stone    2  4     93  8 Blue metal stone    4  0     97  8 Grey post, mixed with whin    0  5     98  1 Grey post    2  2     100  3 Grey metal stone    7  0     107  3 Blue metal stone, with a bed of ironstone 1½ inches    5  10     113  2 COAL - Low Main Seam    3  9     116  11 Grey metal stone    1  7     118  6 Blue stone, mixed with ironstone balls    11  8     130  2 Strong white post    12  9     142  11 Blue metal stone, tender    7  6     150  5 Strong white post    2  6     152  11 Blue metal stone    2  3     155  2 COAL - Hutton Seam    4  3     159  5

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 0068 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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