The US (as well as other countries) has had a grid mapping system for hundreds of years[0]. It's just way less useful than GPS. The only time I've seen PLSS use

The US (as well as other countries) has had a grid mapping system for hundreds of years[0]. It's just way less useful than GPS. The only time I've seen PLSS used over GPS is for legacy reasons. [0] Public Land Survey System https://nationalmap.gov/small_scale/a_plss.html https://nationalmap.gov/small_scale/a_plss.html