For outdoor activities such as walking and hiking, the maps that are the most useful in the UK, (and most widely available) are the Ordnance Survey 1:25000 series. These 2.5inches to 1mile scale are the best when it comes to looking for rights of way, or checking the contours of a mountain for route finding.Despite having a small collection of such maps, there will always be occasions when you only need a small section, or you just don't have the required map in your possession. Although this mapping...