There are, or were, a few rock fences in the Superstition Mountains on Tex Barkley’s old ranch. The story I heard and what Mr. Barkley said was he worked alone most of the time. So Tex built short rock fences across some trails and he would leave a gap where he needed a gate and when he wanted the trail blocked he used some Mesquite brush to plug the hole. Tex would leave one trail open if he...