Maximum discharge along the river is currently at the reporting a streamflow rate of cfs. This is also the highest stage along the Ontonagon River, with a gauge stage of ft at this location. This river is monitored from 1 different streamgauging stations along the Ontonagon River, the highest being situated at an altitude of ft, the .

The Ontonagon River is a 114-mile-long river located in the Upper Peninsula of Michigan. Historically, the river was an important transportation route for Native American tribes and fur traders. Today, it is primarily used for recreational purposes such as fishing, kayaking, and camping. The river flows into Lake Superior and is fed by several streams and tributaries. Despite its length, the Ontonagon River has a relatively low discharge, making it susceptible to droughts and low water levels. Several dams and reservoirs have been constructed along the river, including the Victoria Dam and the Bond Falls Reservoir, which provide hydroelectric power and recreational opportunities. The river also supports agriculture, with some farms using its waters for irrigation purposes.