Somewhere deep in Michigan’s most remote state park, a music festival happens once a year that most people have never heard of. The Porcupine Mountains Music Festival began in 1985 and later made state history in 2005 as the first music festival held in a Michigan State Park. M-107 Climbs Straight Into Festival CountryThe Porcupine Mountains Music Festival takes place at the Porcupine Mountains Winter Sports Complex, 36606 Carp Lake Tower Road, Ontonagon, Michigan 49953, inside Porcupine Mountains Wilderness State Park near Silver City. The festival sits within Porcupine Mountains Wilderness State Park, a vast landscape with trails, overlooks, wildlife habitat, and room to breathe. Since the festival takes place inside Porcupine Mountains Wilderness State Park, each vehicle needs a Michigan Recreation Passport for entry.