Bristol Coalfield

The Bristol Coalfield is a geologically complex coalfield in the west of England. Comprising the coal-bearing rocks arranged around the Coalpit Heath Syncline and Kingsdown Anticline, it extends beneath the eastern parts of the city of Bristol and northwards through southern Gloucestershire.^[1] The coalfield is sometimes referred to together with the Somerset Coalfield, which lies to its south, as the Bristol and Somerset Coalfield. There are also two outlying coal-mining areas, the Severn Coalfield and the Nailsea Basin which are described below.

Several coal seams are named in the sequence in the Bristol Coalfield. The seams are listed stratigraphically with the uppermost (youngest) at the head of the list and the lowermost (oldest) at the foot.^[2] Not all seams are named, nor are all seams present at any one location.

Upper Coal Measures

• Pensford No 1
• Pensford No 2
• Pensford No 3
• Bromley No 4
• Bromley No 5
• Rock Vein of Brislington
• Salridge
• Mangotsfield (?Salridge)
• Stinking
• Corston
• Cock (?=Millgrit & Rag)
• Coke
• Chick (?=Buff)
• Hen (?=Parrot)
• Coking

Lower and Middle Coal Measures

• New Smith's (?Yate Little, Warmley)
• ?Yate Hard
• Lower Five
• Kingswood & Bedminster Great
• Giller Inn
• Kingswood Little
• Soundwell Hard Venture
• Ashton Great
• Ashton Little