The Ontonagon River is a river flowing into Lake Superior at the village of Ontonagon, on the western Upper Peninsula of Michigan in the United States. The main stem of the river is 25 miles (40 km) long and is formed by a confluence of several longer branches, portions of which have been collectively designated as a National Wild and Scenic River. Several waterfalls occur on the river including Agate Falls and Bond Falls.
The Ontonagon River just below the confluence of its east and middle branches, as viewed from near US Highway 45
The South Branch Ontonagon River at Ewen
Agate Falls on the Middle Branch
The Ontonagon River in Ontonagon, just above its mouth at Lake Superior
Ontonagon is a village in the Upper Peninsula of the U.S. state of Michigan. The population was 1,285 at the 2020 census. It is the county seat of Ontonagon County, and is the only incorporated place within the county.
River Street (US 45) in downtown Ontonagon