[Help] Keeping An Escape Artist In The Yard Without An Electric Fence

I'm wondering if there is a way of training one of our dogs to stay in our yard. We are in the process of fencing in the entire yard. Currently the side yard is fenced in and she will stay in the side yard if she's supervised, but she'll get out if you turn your back.She's not trying to leave, she comes back, but she'll also go on mile long jaunts through the neighborhood terrorizing animals and running in the road. Currently we've been chaining her up, but I don't want to have to do this forever.We never had to do anything for our other dog, she just doesn't go much further than the next door neighbor's yard and they have said that they are fine with this because they keep their dog out back all day and so our two dogs play together. The other neighbor doesn't mind either as they don't use their backyard and we use out dogs to kill the groundhogs that live on their property.I don't think merely a physical barrier will stop this dog. She ripped up the plastic bottom of her crate, bent the metal cage enough to squeeze through, dug a hole in the dirt (we have dirt floors in the basement) and got out of her crate, then chewed the moulding around the glass in the window and got out of the house one day this winter. If she wants to get there and there is a physical means of doing it she'll find it. She also can jump our five foot half doors in the horse stalls and can climb through the stall windows which are at six feet.I do not want to resort to an electric fence if I can help it. It would disturb a lot of stuff that is more or less permanent and it is vital that, at times, she knows she can cross that boundary (when permission is given to do so).Dog tax. Willow is the one with the white in her coat. She is the escape artist. Sadie is the smaller one. She is never more than ten feet from my wife. via /r/dogs http://ift.tt/2rvpFG5