Shafts	Index	Shafts

Geology encountered   Thickness   Depth   ft. in.   ft. in. Main Coal    96  0     96  0 Soft grey thill    0  9     96  9 Strong white and brown post    6  0     102  9 Brown and grey post    9  0     111  9 Blue metal    1  6     113  3 Grey and brown post, with whin girdles    9  0     122  3 Grey metal and metal stone    5  0     127  3 White and grey post    6  0     133  3 Grey metal stone    2  0     135  3 Grey metal    1  0     136  3 COAL    3  1     139  4     COAL    1  5            Blue grey metal    1  0            COAL, with water, rather slaty at the top    0  8        Grey metal stone    1  0     140  4 Grey and brown post, with water    8  0     148  4 Grey metal stone    1  8     150  0 Grey metal stone    4  4     154  4 Grey and brown gullety post, with water    6  0     160  4 Grey and white post    48  0     208  4 Blue metal    0  3     208  7 White post    0  6     209  1 Black and blue metal    0  6     209  7 COAL, rather hard near the bottom    2  5     212  0 Hard girdle    0  3     212  3 In grey metal stone    0  9     213  0

Source: An Account of the strata of Northumberland & Durham as proved by Borings & Sinkings, Volume F-K, published by the North of England Institute of Mining & Mechanical Engineers, 1885

  original entry for sinking/boring number 1107 in "An Account of the strata of Northumberland & Durham as proved by Borings & Sinkings, Volume F-K, published by the North of England Institute of Mining & Mechanical Engineers, 1885"

  main page for Heddon Colliery