HELPING KEEP THE TRAILS UP & RUNNING! MAKE A DONATION view our sponsors Mupsa History The Michigan Upper Peninsula Snowmobile Association was founded in 1970 by Ray Freberg. MUPSA is comprised of Big Bay 550 Snowmobile Club, U.P. Central, Hiawatha Trails, Moose Country,Alger SORVA, Baraga Visitors Bureau, and Trenary Northern Trails. They’ve been grooming trails […]