The Little River rises in remote country in the southern portion of the Avon Wilderness Park, south of Mount Hump, part of the Great Dividing Range within the Alpine National Park. The river flows generally southwest, then northwest, then southwest, then south, before reaching its confluence with the Ben Cruachan Creek within the Shire of Wellington. The Ben Cruachan Creek flows into the Avon River. Little River descends 645 metres (2,116 ft) over its 7-kilometre (4.3 mi) course.[2]