The Au Sable is a major tributary to Lake Huron. It drains a north-south basin that includes 1,932 square miles in north-central lower Michigan. The basin is approximately 90 miles long and 10 to 30 miles wide. The river basin is partially within the Huron National Forest and includes parts of Otsego, Montmorency, Crawford, Osco, Alcona, Roscommon, Ogemaw, and Iosco counties.
The Au Sable River may just be the finest brown trout fly fishing east of the Rockies. If that were not enough reason to visit the river, the Au Sable is also one of the best canoeing rivers in the Midwest. Map Au Sable River AuSable River Primitvie Campsite Maps
Designated Reach: October 4, 1984. The main stem from the Mio Pond project boundary downstream to the Alcona Pond project boundary.
Classification/Mileage: Scenic -- 23.0 miles; Total -- 23.0 miles.
S. Branch AuSable River Wilderness
The Mason Wilderness Float is a wonderful trip for the person who wants to experience Michigan's North woods at its best. The South Branch of the Au Sable River flows thru the Huron National Forest. This stretch of the river has no white water, is crystal clear and one of Michigan's top trout streams. The pine and cedar lined river is abundant with wild life. If you choose to paddle on a week day you may not see another soul on the river. There are easy designated stops for lunch or just to stretch. The trip usually lasts 5-6 hours and our staff will pick you up at a predetermined time and return you to your vehicle.
Huron-Manistee National Forest
1755 South Mitchell Street
Cadillac, Michigan 49601