Au Gres River

CountryUnited States

locationHill Township, Ogemaw County, Michigan

coordinates44°21′15″N 83°57′46″W / 44.35418°N 83.96277°W / 44.35418; -83.96277^[1]

location

Saginaw Bay, Lake Huron, Michigan

Au Gres River
View from the US 23 bridge in Au Gres
Location
Country	United States
Physical characteristics
Source
• location	Hill Township, Ogemaw County, Michigan
• coordinates	44°21′15″N 83°57′46″W / 44.35418°N 83.96277°W / 44.35418; -83.96277[1]
Mouth
• location	Saginaw Bay, Lake Huron, Michigan
• coordinates	44°01′42″N 83°40′55″W / 44.02835°N 83.68192°W / 44.02835; -83.68192
Length	47 mi (76 km)
Basin size	450 sq mi (1,200 km2)

The Au Gres River is a river in Michigan. Its mouth is at Lake Huron in the city of Au Gres, Michigan. It flows through Arenac, Iosco and Ogemaw counties. It formerly had an eastern branch, which was severed from the parent river and rerouted along the Whitney Drain to Lake Huron north of Au Gres. The main stream is 46.7 miles (75.2 km) long.^[2][3]