A group of post-medieval bell pits and coal workings are visible as earthworks on aerial photographs taken in 1946 and 1980. Bell pits stretch for a distance of over 2km. A small embanked feature of unknown function lies at NU 0910 2740. The coal workings were probably worked in the 19th century to feed the local needs of farmers. They worked the Main Coal and Blackhill Coal seams.