Cumberland Coalfield

It extends from Whitehaven in the south to Maryport and Aspatria in the north.

[2][3] Not all seams are present in any one part of the coalfield: Middle Coal Measures Formation There is also a Crow seam between the Metal and Bannock seams.

Lower Coal Measures Formation Towards the top of the underlying Stainmore Formation (or Hensingham Formation), which is of Namurian age, are the:

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