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:''For other "Black Rivers" in Michigan, see Black River (Michigan).''
'Black River' is a river in the U.S. state of Michigan, flowing into the St. Clair River at in the city of Port Huron. The Black River Canal in northern Port Hurn cuts off the lower portion of the river.
The river rises in northern Sanilac County and its drainage basin covers most of the central and southern portions of the Sanilac County, most of northern St. Clair County, and a small area of east central Lapeer County. Large sections of the upper portion of the river and much of its drainage basin are heavily channelized for agricultural irrigation.
Tributaries (from the mouth):

★ Stocks Creek, confluence in Port Huron

★ Mill Creek, confluence in Clyde Township, rises in eastern Lapeer County

★ Plum Creek, confluence in west central Grant Township

★ Silver Creek, confluence in northwest Grant Township

★ Black Creek, confluence in Worth Township, Sanilac County, rises in eastern Speaker Township

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★ Seymour Creek, confluence in Fremont Township

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★ Jackson Creek, confluence in Fremont Township

★ Mille Creek, confluence in Croswell

★ Arnot Creek, confluence in Lexington Township just north of Croswell

★ Kelly Creek, confluence in Washington Township

★ Elk Creek, confluence in Washington Township, rises in Maple Valley Township in southwest Sanilac County