Originally Posted by Balkan Boy
Did you have a backup in case of (all) GPS failure?
Also, do you think you could've done this trip without GPS?
No this trip is only possible with either a GPS .... or a roadbook with a 25 kg roll on it. And then probably only a Montana GPS. It was very difficult to load all the data onto Terry's Zumo.
Navigating the farm trails which often diverge or cross every few hundred metres would be impossible without knowing which one you had to be on.