Planning a wilderness adventure is much easier and safer when you can navigate with the click of a button – as we discovered ...

It is the biggest shakeup in the Ordnance Survey's 260-year history: from tomorrow you can download maps as detailed as 1:10,000 scale, or collect a list of locations appearing on maps at the 1:50,000 ...

Sometimes it is necessary to be even more accurate. In this case you can imagine that each grid is divided into 100 tiny squares. The distance between one grid line and the next is divided into tenths ...