Those who prefer a map to an app abound in the age of GPS | Letters

Readers respond to a piece by John Harris on how we are increasingly leaving navigation to our phones

John Harris's observations on the implications of using unsuitable phone apps for navigation when walking in the wilds resonated with me (We now leave navigation to our phones. The result: more of us are getting hopelessly lost, 27 April). In terms of practical advice, though, rather than using the Ordnance Survey app backed up with a paper map, I do it the other way round.

Using a 1:25,000 OS paper map as the primary navigational aid conserves phone battery and allows you to keep an eye on the wider landscape for navigational clues all the time; and the scale is fixed, so after becoming accustomed to it, you have a feel for distances while on the move.