I used a thing called the “Thomas Guide”. You could buy them for different regions. All maps were on a grid, and so if you needed the smaller section you found it on the grid and say it was at volume D and row 5, you’d look up what page the D5 map was on and that be a whole page map of just that area.
So basically, maps. Also people were much better at giving and writing down directions. That’s about it!
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