There are a lot of trails for hiking in Nevada. Many of them, I’m guessing, not “official”. “Official” meaning designated by the BLM or the Park Service or whichever agency owns that land. (86% of the land in Nevada is owned by the Federal Government.)
This leaves a lot of open land, that no one really deals with, and people like me and the lady like to hike. In such places, there are homemade trail markers.
Usually a tower of rocks. It’s highly unnatural looking, catches the eye, and is built from material all readily available.
And is very handy for not getting lost in areas which are pretty easy to get lost in. Thank you nice people.