Shafts	Index	Shafts

Geology encountered   Thickness   Depth   ft. in.   ft. in. Soil and sand    6  0     6  0 Strong blue clay, with large tumbling stones    30  0     36  0 Freestone, with whin and water    18  0     54  0 Blue metal, with a little water    10  0     64  0 COAL    0  7     64  7 Thill    3  0     67  7 Grey post, with partings of blue metal and water    24  0     91  7 Strong white post, mixed with whin and water    7  2     98  9 Black metal, with whin girdles    14  0     112  9 COAL    1  3     114  0 Thill    3  0     117  0 Grey metal, with thin girdles    13  0     130  0 Grey metal, with thin girdles    0  1     130  1 Black metal    0  4     130  5 Blue metal    6  0     136  5 Strong grey metal stone    7  6     143  11 COAL - High Main Seam    6  6     150  5     COAL, good    6  0            COAL, foul    0  6

Source: An Account of the strata of Northumberland & Durham as proved by Borings & Sinkings, Volume S-T, published by the North of England Institute of Mining & Mechanical Engineers, 1894

  original entry for sinking/boring number 1719 in "An Account of the strata of Northumberland & Durham as proved by Borings & Sinkings, Volume S-T, published by the North of England Institute of Mining & Mechanical Engineers, 1894"

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