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From Farragon Hill summit to Beinn a’ Ghlo (Route 38)

Compass and GPS

A compass is a very useful aid in mist, even if your skills only extend to ‘northwest, southeast’ rather than precision bearings. Magnetic deviation is now about 4° West; check your map for future years. To convert a map bearing to a compass one, add 4. GPS receivers should be set to the British National Grid (known variously as British Grid, Ord Srvy GB, BNG, or OSGB GRB36). Smartphones have limited battery life and squinty little map extracts, and aren’t really waterproof; mountain rescue teams are getting fed up with people relying on them for going up hills.

Using this guide

Basic planning information is provided at the start of each route. See Type of walk for an explanation of the icons. The difficulty and timing squares are explained in the box below. Times are based on 1 hour for 4 horizontal kilometres or for 500m of height gained, with extra time where the ground is particularly steep or rough. They’ll be about right, including brief snack stops, for a moderately paced party. Where a bus or train can be used to link the two ends of a linear route, this is also noted. Other public transport information is given in Appendix C.