Newton River (Fiordland)

Newton River
West Cape & Newton River Mouth
Route of the Newton River
Mouth of the Newton River
Newton River (Fiordland) (South Island)
Native nameWaipōuri
Location
CountryNew Zealand
Physical characteristics
SourceLake Fraser
  coordinates45°53′13″S 166°29′57″E / 45.8869°S 166.4993°E / -45.8869; 166.4993
  elevation31 m (102 ft)
Mouth 
  location
Tasman Sea
  coordinates
45°54′30″S 166°26′01″E / 45.9083°S 166.4337°E / -45.9083; 166.4337
  elevation
0 m (0 ft)
Length9 km (5.6 mi)
Basin features
ProgressionNewton RiverTasman Sea

The Newton River is a river in Fiordland, New Zealand. It drains Lake Fraser south-westward into the Tasman Sea just south of West Cape.

Newton River is an official name, gazetted on 4 February 1960, after being in use by local fishermen for some time. It is about 9 km (5.6 mi) long.

The river flows over the Newton River pluton of Carbonferous biotite, granodiorite and granite, which has been glaciated and also forms a rock arch to the south of the river mouth, where a marine terrace has been uplifted within the last half a million years.

The beech forest in the valley includes black beech (tawairauriki), kāmahi, and silver beech (tawhai).