|Main source||Mount Parnassus|
|River mouth||Leader River|
|Length||8 km (5 mi)|
The Castaly River is a river of New Zealand. It is in north Canterbury, northwest of the township of Parnassus, and flows generally east for 8 kilometres (5 mi) before joining the Leader River, itself a tributary of the Waiau River.
- Land Information New Zealand - Search for Place Names
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