As a former trucker I too have a bunch of road maps. I keep them in both vehicles. None in the BOB.
I would think topographic maps might serve well if youy had to travel on foot and wanted to stay off the "beaten path". Also knowing how to read a map. I'm always suprised at how many people can't...
THIS!
Did this yesterday.
It's also a good idea to put on some kind of a load when you "test" your generators. I run my air compressor off my generator about every 6 weeks to keep things in check.