Have you tried the Coal Authorty website ?
http://coal.decc.gov.uk/en/coal/cms/publications/data/map/map.aspx [photo]Personal-Album-859-Image-84093[/photo]
Seem to list several shafts in that rough area.
Reference: 427297-002
Type: Shaft
Treatment Indicator: False
Reference: 427297-003
Type: Shaft
Treatment Indicator: True
Treatment Details: was fenced by International Mining Consultants Limited for the Coal Authority in November 1996. It appears to be filled but we have no record of any treatment having been afforded to it
Reference: 427297-004
Type: Shaft
Treatment Indicator: True
Treatment Details: was fenced by International Mining Consultants Limited for the Coal Authority in November 1996. It appears to be filled but we have no record of any treatment having been afforded to it
Reference: 427297-005
Type: Shaft
Treatment Indicator: True
Treatment Details: this shaft may have been fully or partly removed by past opencast coal mining operations
Reference: 427297-012
Type: Shaft
Treatment Indicator: True
Treatment Details: this shaft may have been fully or partly removed by past opencast coal workings