Map of the 87 mile (139km) Ridgeway National Trail through the south of England from Avebury in Wiltshire to Ivinghoe Beacon in Buckinghamshire. This booklet is included with the Cicerone guidebook to the trail, and shows the full route on Ordnance Survey 1:25,000 maps. Presented in 12 stages in the guidebook, the trail typically takes 6-8 days.