Commissioners Waters was formed by the confluence of the Dumaresq Creek and Tilbuster Ponds. Commissioners Waters is located about 4 kilometres (2.5 mi) east of Armidale. The river flows generally to the southeast by south, joined by a minor tributary, before reaching its confluence with the Gara River.[1] The river descends 56 metres (184 ft) over its 19 kilometres (12 mi) course.[2]