This restaurant, "The Big Fish Supper Club" is located just a couple miles outside Bena, Minnesota and 15 miles East of Cass Lake. It's hard not to see it when you drive by on Highway 2.
If you are looking to secure some 'greenie' mix, you'll have to hoof it up to NE Minneapolis and stop into Tony Jaros Rivergarden with cash, as that's the only way they are selling the kits.