I don't know of any around where I live. When I was in Montana there was a lake just west of Kalispell that had them and I fished through the ice for them. Spend what fishing time I can these days on Crappie and Channel cats. Looking to start on Walleye. Everyone say they are good eating, unless they are from Oregon then they call them trash.
Ran into a guy in Montana years ago fishing through the ice for them and he'd take them home and gut then then freeze them whole. Then when he would run low he'd get some out of the freezer and smoke them. I tried some and they were really good.
Come to think of it my first experience with them was in New York as a kid. Went to Baiting Hollow Boy Scout Camp every year and they had a lake there and I think that was all they had in it. Caught and released everything there!