Boulder River (New Zealand)

Boulder River
Route of the Boulder River
Mouth of the Boulder River
Boulder River (New Zealand) (South Island)
Location
CountryNew Zealand
Physical characteristics
Source 
  locationBoulder Lake
  coordinates40°53′21″S 172°34′30″E / 40.8893°S 172.575°E / -40.8893; 172.575
  elevation985 metres (3,232 ft)
Mouth 
  location
Aorere River
  coordinates
40°48′09″S 172°32′56″E / 40.80244°S 172.54875°E / -40.80244; 172.54875
Basin features
ProgressionBoulder RiverAorere River → Ruataniwha Inlet → Golden Bay / MohuaTasman Sea
Tributaries 
  leftAmphitheatre Creek
  rightParson Creek

The Boulder River is a small river in the north of the South Island of New Zealand.

The headwaters are at the Kahurangi National Park's small Boulder Lake. The river flows north for 10 kilometres (6 mi) before draining into the Aorere River.