The Molonglo River is a perennial river[4] that is part of the Murrumbidgee catchment within the Murray–Darling basin. It is located in the Monaro and Capital Country regions of New South Wales and the Australian Capital Territory, in Australia.
The river rises on the western side of the Great Dividing Range, in Tallaganda State Forest at 1,130 metres and flows generally from south to north before turning north-west, through Carwoola and the outskirts of Queanbeyan, where it has confluence with its major tributary, the Queanbeyan River, and then continues through Canberra, where it has been dammed by the Scrivener Dam to form Lake Burley Griffin. The river then flows to its confluence with the Murrumbidgee River, near Uriarra Crossing. Over its 115 kilometres course, the Molonglo River alternates several times between long broad floodplains and narrow rocky gorges. One of the floodplains is called the Molonglo Plain.
From source to mouth, the river is traversed by the Captains Flat Road at Captains Flat, Briars-Sharrow Road in Carwoola, the Kings Highway between Queanbeyan and Bungendore, the Yass Road, north of Queanbeyan, the Monaro Highway at Pialligo, the Commonwealth and Kings Avenues as Lake Burley Griffin between Parkes and Acton, Lady Denman Drive at Scrivener Dam, and the Tuggeranong Parkway south of the Glenloch Interchange.
