The Old River

The Old
River
Country	Australia
State	Victoria
Regions	Victorian Midlands (IBRA), Western District
Local government area	Moorabool
Part of	Port Phillip catchment
Source	Mount Bullengarook, Blackwood Ranges, Great Dividing Range
- location	Lerderderg State Park
- elevation	575 m (1,886 ft)
- coordinates	37°31′06″S 144°25′51″E / 37.51833°S 144.43083°E / -37.51833; 144.43083
Mouth	confluence with the Lerderderg River
- location	below Mount Blackwood
- elevation	271 m (889 ft)
- coordinates	37°33′34″S 144°23′49″E / 37.55944°S 144.39694°E / -37.55944; 144.39694Coordinates: 37°33′34″S 144°23′49″E / 37.55944°S 144.39694°E / -37.55944; 144.39694
Length	7 km (4 mi)
National park	Lerderderg State Park
Location of The Old River mouth in Victoria

The Old River is a perennial river of the Port Phillip catchment, located in the Western District region of the Australian state of Victoria.

The Old River rises below Mount Bullengarook, part of the Blackwood Ranges of the Great Dividing Range, in remote country within the Lerderderg State Park. The river flows generally south by west before reaching its confluence with the Lerderderg River below Mount Blackwood. The river descends approximately 304 metres (997 ft) over its 7-kilometre (4.3 mi) course.