Preliminary remark: Given that the exact recording of a route inside a canyon with GPS is extremely difficult (due to the impossibility of continuous communication of the GPS device with the satellites), the presentation of the route on the map is given empirically...
Preliminary remark: Given that the exact recording of a route inside a canyon with GPS is extremely difficult (due to the inability of the GPS device to constantly communicate with the satellites), the presentation of the route on the map is given empirically and...
