The river begins at Rabbit Lake in Nipissing District at an elevation of 288 metres (945 ft).

The river continues northeast, passing into Timiskaming District, to Fourbass Lake at an elevation of 274 metres (899 ft) and then empties into the west side of Lake Timiskaming, 1 kilometre (0.6 mi) south of the mouth of the Montreal River.

A dam controls the outflow of Fourbass Lake, and some of the water from the lake is diverted through a penstock from a point 47°07′17″N 79°29′54″W / 47.12139°N 79.49833°W / 47.12139; -79.49833 southeast of the river outflow to the Ontario Power Generation Matabitchuan Generating Station.

[1] Highway 567 leads from the community of North Cobalt (in Temiskaming Shores) to the nearby Lower Notch generating station.

This article related to a river in Northern Ontario, Canada is a stub.