The Au Sable River ( aw SAH-bəl) is a 138-mile-long (222 km) river in the Lower Peninsula of the U.S. state of Michigan. Rising in the Northern Lower Peninsula, the river flows in a generally southeasterly direction to its mouth at Lake Huron at the communities of Au Sable and Oscoda. Like the nearby Manistee River, it is regarded as a premier brown trout fishery east of the Rockies and the Michigan Department of Natural Resources has designated it a blue ribbon trout stream. A map from 1795 located in the United States Gazetteer calls it the Beauais River. In French, the river is called the Rivière au sable, literally "Sand River".

Quelle: Wikipedia