old maps are often better maps. like everything else, in the last 10 yrs or so large publishing megacorps bought up all the competitors, merged them, dropped a lot of information, and eliminated competition. old maps have data that is NOT on new maps. (new maps sometimes have corrections and new roads etc, but roads don't change much and urban roads are no fun to drive on and google maps is better for urban).
old nuke test sites, mines, crazy roads, dead businesses, old towns, maps are great. ive been scouting maps from the 40's (local and abebooks.com) and wow it's like another world.
i started doing this in the 70's when i found an old map that had on it a single word: CRATER. wtf! i lived in massivetwoshits at the time, it seemed so exotic. now i'm positively BORED by craters, there's so many out here (south west).
benchmarks are good, i have some of those.
one camping/road trip i actually forgot my sleeping bag! then almost ran over one in the road, musta fell of someone's truck.
the road will provide!