|Here is the same area of Somerset as depicted by four different maps:
|GBOpen (in Basecamp) :||Map compiled from Open Street Map with added contours (in Basecamp)|
|Ordnance Survey 'Landranger' paper map 1:50000||Ordnance Survey 'Explorer' paper map 1:25,000|
|Crook Peak on the Mendips is quite popular with walkers and, therefore, with Open Street Mappers. Go to somewhere less popular such as this area on the England/Wales border near Knighton and the advantages of the comprehensive OS mapping are clear:|
A peak in North Wales as displayed on an Etrex.
On the left is GBOpen, on the right is Garmin UK Topo Lite