John Merrill's classic limestone dale walk in the Peak District - 40 miles - from Castleton to Thorpe, via twenty dales. "The finest dale walk in the Peak District" Complete the walk and get a special embroidered badge and certificate - Red badge if completed in 24 hours. Green badge if comp;leted in 48 hours. Walk log. History notes. 48 pages. 26 photograpghs. 11 map