>Does anyone know of examples of winding in shafts being powered by >waterwheels, c.19th century? The following may give you a start, Dickinson, J.M. A Prototype Aerial Ropeway at Hebden British Mining No.1 1975 pp.11-16 Gill, M. C. (1988). "Mechanisation at the Grassington Lead Mines." Industrial Archaeology Review Vol.11(No.1): pp.37-50. Gill, M.C. The Grassington Mines British Mining No.46 1993 Gill, M.C. The Mechanisation of the Grassington Mines, Yorkshire British Mining No.25 1984 pp.45-50 Hodge, P.T. Power in Hebden Gill in the mid 19th century British Mining No.59 1997 pp.148-155 Raistrick, A. (1953-55). "The Mechanisation of the Grassington Moor Mines Yorkshire." Transactions of the Newcomen Society Vol 29: p.179-195. Woodall, F.D. (1991) Steam Engine and Waterwheels, Frazer Stewart, Waltham Abbey There are a number of examples in the Yorkshire Dales but few have been investigated. I am sure Mike Gill will be able to answer specific questions about the Grassington winding sysytem which is probably the most complex. Martin Roe President, Northern Mine Research Society,nmrs.co.uk Conservation Officer NAMHO, National Association of Mining History Organisations, http://www.namho.org Lead Mining in the Yorkshire Dales, http://www.martinroe.pwp.blueyonder.co.uk Meerstone Archaeological Consultancy http://www.martinroe.pwp.blueyonder.co.uk/meerstone.htm