Black River (Mackinac County)

Black River is an 11.0-mile-long (17.7 km) river on the Upper Peninsula of the U.S. state of Michigan. The river flows into Lake Michigan at , approximately 5 miles (8 km) east of Naubinway.
The main branch of the river rises at in a marshy area in eastern Garfield Township near Cranberry Lake Bog. The East Branch rises at in Hudson Township and joins the main course at . All of the river's drainage basin is within Mackinac County, much of it within the Lake Superior State Forest.
Tributaries (from the mouth):

East Branch Black River
Borgstrom Creek
Peters Creek
Silver Creek
Bark Creek

Source: Wikipedia https://en.wikipedia.org/wiki/Black_River_(Mackinac_County)