predator proof run

What kind of fence will keep out cougars, foxes, coyotes, and bobcats?

Hi! I am looking to build an 800 sf fully enclosed run for goats and maybe also for chickens. I live in the mountains with mountain lions, coyotes, foxes, raccoons, bears, etc and the location for our run is near trees, so wilhout a top covering on the run, it seems that many predators could...