No one has written a history of the rock post. They anchor barbed wire fences on most of the ranches in southeastern Oklahoma. This post on your left is a typical rock post along Route 22 between Caddo & Kenefic.
The Colonel isn't a typical rancher. He's made his rock posts into works of art, as evidenced by this post on the right. It graces a fence corner near the house and barn.
Folks wondered for a long time if the dark rocks were painted. They're not.