Cheboygan River flowing through Cheboygan
|- location||Mullett Lake|
|- elevation||594 ft (181 m) |
|Lake Huron at Cheboygan|
|581 ft (177 m) |
|Length||7.0 mi (11.3 km)|
Seven miles (11.3 km) in length,  the Cheboygan River flows from the north end of Mullett Lake at to the Straits of Mackinac at .  The river forms the boundary between Benton Township and Inverness Township before flowing into the city of Cheboygan. The largest tributary is the Black River. The Cheboygan River is entirely contained within Michigan's Cheboygan County, and the county seat of Cheboygan is located at the river's mouth. The river forms the port of Cheboygan and serves as a dock for the ferry boat to Bois Blanc Island and the Coast Guard cutter Mackinaw. 
Cheboygan was founded as a lumbering town to cut timbers harvested from the Cheboygan River's drainage and floated down to mills (now mostly vanished) at the mouth of the river. Today, one of the biggest industries of the town and river of Cheboygan is pleasure boating up and down the river. The river is a key artery of the Inland Waterway, a pleasure-boat necklace of waterways in the northern section of Michigan's Lower Peninsula.
The Cheboygan River descends 13 feet (4.0 m) in its 6-mile (9.7 km) length, from 594 feet (181 m) above sea level, the level of Mullett Lake, to Lake Huron at 581 feet (177 m) above sea level. The river and other sections of the Inland Waterway are made accessible by locks maintained by the United States Army Corps of Engineers.
In Cheboygan itself, U.S. Highway 23 is carried across the Cheboygan River by the Cheboygan Bascule Bridge, a Scherzer rolling lift bridge built in 1940 and added to the National Register of Historic Places in December 1999. In 2009, Cheboygan city authorities built an elevated pedestrian bridge across the Cheboygan near its mouth. 
The mouth of the Cheboygan River into Lake Huron is marked by the Cheboygan Crib Light.
- U.S. Geological Survey Geographic Names Information System: Mullett Lake
- U.S. Geological Survey Geographic Names Information System: Cheboygan River
Merriam-Webster's Geographical Dictionary (3rd ed.).
Merriam-Webster. 1997. p. 237.
- U.S. Geological Survey. National Hydrography Dataset high-resolution flowline data. The National Map Archived 2012-04-05 at WebCite, accessed November 21, 2011
- Michigan Atlas and Gazetteer (Map) (10th ed.). DeLorme. 2002.
- "Bibliography on Cheboygan County". Clarke Historical Library, Central Michigan University. Retrieved January 19, 2013.
- "Cheboygan authority approves river bridge design". Cheboygan Daily Tribune. 2008-11-20. Archived from the original on 2011-07-08.
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