Railway Walks: Gateway to the Highlands

Julia Bradbury takes a series of walks following the old tracks, overgrown cuttings and ancient viaducts of Britain's lost rail empire. Here, Julia faces an epic walk in more ways than one. Not only is this the longest and arguably most dramatic walk yet, but it passes through the unruly territory of Scottish clans and Rob Roy. The Highlands were a place to be wary of, until the railway arrived