We have always kept maps in every vehicle. Back in the 60's and 70's it was quite a process to take a cross country trip with individual state maps. When the Gazetteers came along it made things much easier. Back in 2011 we took an RV caravan through Canada's east coast in our 34-foot Winnebago Adventurer pulling our 2004 Jeep TJ. Everyone had to get to on their own. The next 6 weeks was spent exploring the Nova Scotia, New Brunswick, Labrador, and PEI. We took along our brand-new GPS just to see if it could do the job.
By in large it did OK, but keep in mind there aren't that many main roads. All was going well until it was time to head home. We stopped for gas at a truck stop and went on our way. After about 5 miles the GPS told us we needed to make the next right turn. Without checking the map, we made the turn. It was a 4-lane road, so we felt all was going well. Within a few miles it narrowed down to 2 lanes, but it looked well-traveled and well maintained so still no red flags.
After another 10 miles or so the pavement came to an end. The GPS was still directing us to move forward and take the next right turn. By now it was obvious that the GPS had made a mistake, but we had to find a place to turn around. About a mile down the unpaved road there was still no side roads or drives to make a turn around. We realized that even if we did find a drive turning around would be nearly impossible. We decided to unhook the jeep and turn the motorhome and the Jeep around separately.
The road was so narrow it took close to 15 minutes to get the motorhome turned around. The wheelbase was only a few inches shorter than the width of the road. The drainage ditches on either side made it even more difficult. I must have gone back and forth a dozen or more times making only a few inches of progress each time. After we finally got turned around, we hooked up the Jeep and went on our way. The GPS went in the trash can and we used the Gazetteer(s) for the remainder of the trip.
GPS systems have made vast improvements since then, but we still don't trust them exclusively. Maps are always our backup. Whenever there's a question, we defer to the map rather than the GPS.
Just got in the door from a 530.2 mile jaunt up from Surfside Beach SC that I could drive blind folded . 84 degrees yesterday on the beach . 44 here now . From AC to Heat in 12 hrs , 
