Bad Daddy’s Burger Bar in Charlotte has them at their locations.
The best I’ve ever had was when we were out west in Yellowstone and Tetons. Nothing out east has ever come close to them.
I just saw one headed to the far western part of Virginia to meet the wife yesterday.
There is a dude that raises them where he used to have longhorns... You need a pretty hefty fence and no bulls in the same field, one will be killed by the other.
But man... bison burgers are the best. Put some cheese on them and top it off with a hunk of ham (not bacon) and you have a Western Montana burger. (Same with Elk too)