Cumberland Coalfield

The Cumberland Coalfield is a coalfield in Cumbria, north-west England. It extends from Whitehaven in the south to Maryport and Aspatria in the north.

Geology
The following coal seams occur within the Coal Measures Group in this coalfield. 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.
 * (series of unnamed coals)
 * Brassy
 * Black Metal
 * Fireclay
 * White Metal
 * Little
 * Slaty
 * Tenquarters
 * Rattler
 * Bannock Band
 * Main Band
 * Lower Metal
 * Yard Cannel Band
 * Yard
 * Lower Yard

Lower Coal Measures Formation
 * Half Yard
 * Two Foot
 * Little Main
 * Eighteen Inch
 * Lickbank
 * Sixquarters
 * Parrot
 * Upper Threequarters Rider
 * Upper Threequarters
 * Lower Threequarters
 * Upper Albrighton
 * Middle Albrighton
 * Lower Albrighton
 * Harrington Four Foot

Towards the top of the underlying Stainmore Formation (or Hensingham Formation), which is of Namurian age, are the:
 * Udale Coal
 * Bedlam Gill Coal
 * (unnamed coals)