[Red Badger]

In India and Africa where wild elephants still roam, fences are not a deterrent..............

[Verginius Rufus]

Zoos manage to keep elephants contained. Maybe a high wall with a moat. Crocs in the moat would be an added deterrent but I don’t think crocodiles would do well in the winter in Kentucky.

[Paal Gulli]

"In India and Africa where wild elephants still roam, fences are not a deterrent.............."

Sure they are. You just need better fences.

https://en.wikipedia.org/wiki/The_Elephant_Sanctuary_in_Tennessee

21 years in operation, ZERO escapes.