A contemporary problem with old outdated maps and plats is they are often used by entities like Google maps etc., etc...
Many old roads are no longer passable as shown on old maps because land use and ownership changes...
In the same respect people buy property on roads they know dead end at farm etc...not realizing that many years ago the (dead end) road used to be a well traveled shortcut or even a primary road connecting points beyond in either direction...
Good points...... people have gotten into serious trouble blindly following on-screen map data. "But, it's Google !"
Up to date surveys..... critical for knowing about long dormant right-of-ways.....
Rgds, D.