Mille Lacs Wildlife Management Area Share: State & City Parks & Wildlife Management Mille Lacs Wildlife Management Area Visit Website 29172 100th Avenue P.O. Box 217 Onamia, MN 56345 (320) 532-3537 Visit Our Website Hours: Public hunting has been the dominant outdoor recreational use of the Mille Lacs WMA. About Map About 61 square miles of wet, rocky land. Approximately 50 miles of roads and over 100 miles of access trails and firebreaks lace the area, allowing those who wish to observe wildlife to enjoy. Directions Located east off Highway 169 on County Road 20, south of Onamia. Much of the area's attraction is due to the wide variety of bird and animal species found there. What's Nearby? Distance: 5 10 15 20 25 50 mi.