Dear all, We are investigation several sites to locate old mineshafts. The mining information available confirms the existence of the shafts but the exact location, method of treatment on abandonment and current condition are unkown. To complicate matters, some of the sites have been landscaped and in some cases the original ground surface is situated below railway embankments up to 8m high. We are considering using a combination of intrusive ground investigation and geophysical techniques but are not sure of how successful we will be. If you have been involved in this type of work and would like to share your experiences (good or bad) then please let me know.I would appreciate any comments you may have. Regards, Mahmoud I Alsayed First Consulting, Quay Road, Rutherglen, Glasgow G73 1LD, UK Tel. +44 (0)141 335 5300 Fax +44 (0) 141 335 5301 Email [log in to unmask]