I borrowed this from Texas Chef, who seems to have got it off this Wikipedia entry about Wales. He wonders if anyone in Texas still builds these things, called stiles. I remember seeing one–a bit shorter than this one–near a rest stop on US 290 West, east of Fredericksburg. Or maybe it was Texas 71, west of Bastrop (which, BTW, is celebrating it’s 175th anniversary this weekend), but I think it was on 290. Looked pretty ingenious to me. Doesn’t defeat the fence because it’s too narrow for the animal (theoretically, anyway) to get over it.
THE TEXAS SCRIBBLER 