There has been a long history of open cast Coal mining in the valley, probably from Roman times. Evidence can still be seen throughout the valley – click here for map.
Deeper shafts were sunk from the late 1700’s and Coal extracted until the last mine closed in 1973.
More info …
- British Geological Survey – Mining Overview
- British Geological Survey – Detailed Mining Site Information
- Wikipedia Article
- Exeter University – A brief History of the Bristol and Somerset Coalfield