So you need signs in order to be able to walk? You might want to GPS your way to the doctor.
just follow where the animals go. when you hunt everyday alldays, this is not as complicated as you think
or maybe you meant something else, they named places after the landscape or a feature of it
One possible way could be following a "painted" rock through the path I don't know
advancement of technology wasn't linear as people think. there was an actual technology before. everything just got destroyed at one point because of some kind of catastrophe.
this is all about this work: "The subject should be developed about a coding system that our ancestors were devised to indicate where to go from one town to another."