It carries water from Loch Oich (to the SW) to Loch Ness (to the NE) and runs in parallel to a section of the Caledonian Canal for the whole of its 5.6 miles (9 km) length.
The river's largest tributary is the Invigar Burn.
The only significant settlement on the river is Fort Augustus at its NE end.
[1] Media related to River Oich at Wikimedia Commons
This article related to a river in Scotland is a stub.