Barrington River rises below Carey's Peak, within Barrington Volcano, on the eastern slopes of the Mt Royal Range, within the Great Dividing Range, and flows generally east through the localities of Moppy, Rawdon Vale, Bindera and the town of Barrington, joined by five tributaries including the Kerripit, Cobark, and Moppy rivers, before reaching its confluence with the Gloucester River, near Gloucester.
The Barrington River originates beneath Carey's Peak, within the Barrington Volcano, on the eastern slopes of Mt Royal Range, part of the Great Dividing Range. It flows eastward through Moppy, Rawdon Vale, Bindera, and Barrington, before joining the Gloucester River near Gloucester.