Shafts	Index	Shafts

Geology encountered   Thickness   Depth   ft. in.   ft. in. Soil    2  0     2  0 Blue clay    12  0     14  0 Gravel and water    2  0     16  0 Strong blue clay    39  0     55  0 Dry sand    5  0     60  0 Blue clay    3  0     63  0 Dry sand    5  0     68  0 Blue clay    15  0     83  0 Strong blue day    3  0     86  0 Brown post    33  0     119  0 Blue metal stone    3  0     122  0 COAL    1  2     123  2 Grey thill stone    2  0     125  2 White post    13  0     138  2 Grey post stone    7  0     145  2 Blue metal    1  10     147  0 COAL    1  6     148  6 Seggar clay    2  0     150  6 COAL    0  8     151  2 Grey thill    3  0     154  2 Grey post    5  0     159  2 Blue metal    2  6     161  8 COAL    0  5     162  1 Black metal    2  6     164  7 Blue metal, with post girdles    12  0     176  7 COAL - Main Coal or Brockwell Seam    4  8     181  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 1621 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 Rough Lea Colliery