A lot of ancient roads are still known about today: * https://en.wikipedia.org/wiki/Historic_roads_and_trails https://en.wikipedia.org/wiki/Historic_roads_and_

A lot of ancient roads are still known about today: * https://en.wikipedia.org/wiki/Historic_roads_and_trails https://en.wikipedia.org/wiki/Historic_roads_and_trails Some modern thoroughfares (roads, highways, rail) simply built on the paths of used by Indigenous people: * https://indiancountrytoday.com/archive/aboriginal-pathways-and-trading-routes-were-californias-first-highways https://indiancountrytoday.com/archive/aboriginal-pathways-a... Some of those trails were on the migrations paths of animals, e.g., buffalo/bison.