Most of it follows the Ridgeway and bridle paths leading from it. A couple of bits on road around Lambourn. There's a few footpaths crossing fields but if memory serves, there were no livestock last time I walked it.
Great, thanks Sam. Too hot for him to run that distance atm anyway, but a nice one to remember when it cools down a bit (i.e. the day the school holidays start, at a rough guess!)