Shafts	Index	Shafts

Geology encountered   Thickness   Depth   ft. in.   ft. in. Outset    4  0     4  0 Clay and sand    60  6     64  6 Sand, with water    2  6     67  0 Hard strong blue clay    18  0     85  0 Soft blue metal    21  0     106  0 Limestone - Six-Yard Limestone    19  0     125  0 COAL    0  6     125  6 Thill    4  0     129  6 Grey stone, with blue partings    18  0     147  6 Limestone - Little Limestone    2  6     150  0 Metal    12  0     162  0 Impure limestone - Red Stone    1  6     163  6 Grey metal    18  6     182  0 Black metal    2  6     184  6 COAL - Shilbottle Seam    2  8     187  2

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 1302 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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