Book excerpt: This guidebook contains in-depth route description and mapping for both the classic 11 day anti-clockwise circuit and an alternative 10 day clockwise TMB circuit. This well-signed but demanding 170km route, starting from Les Houches or Champex, is suitable for fit walkers. The guidebook comes with a map booklet containing official 1:25,000 IGN mapping for the TMB route, and urban maps for the major centres of Chamonix, Courmayeur, Les Contamines, Les Houches and Champex. Complete with a French-English glossary, comprehensive notes about accommodation, facilities and transport, this guide provides all the information needed for planning and completing your trek. The Tour of Mont Blanc is one of the world's classic treks. Visiting France, Italy and Switzerland, the TMB passes through some of Europe's most spectacular mountain scenery, with views of the peaks and glaciers of the magnificent Mont Blanc massif.