Nowadays, it is typical to enter the co-ordinates from the route card into a handheld GPS unit and use this in conjunction with a compass if conditions deteriorate. In some cases, each member of the expedition may memorize a section of the route and have their own compass preset to the relevant bearing. This is a particular technique for military night patrols where the soldiers each lead a section of the route.
Nowadays, it's common practice to enter route coordinates into a handheld GPS device and use it alongside a compass if weather conditions worsen. In some cases, each member of an expedition may memorize a section of the route and have their own compass set to the appropriate bearing. This method is particularly effective for military night patrols where soldiers take charge of specific sections of the route.