Kogin Barrier
Kogin Barrier kogi ne dake cikin Dutsen Aspiring National Park a arewacin Southland,wanda yake yankin New Zealand . Yankin kogin Pyke ne, wanda yake shiga kusan  kudu da tafkin Wilmot .  Gilashin kankara uku ne ke ciyar da Kogin Barrier:

 Icefall Demon Gap (Reshen Arewa)
 Glacier Azurfa (ta hanyar Azurfa Stream, tsakanin rassan)
 Rafin Kankara (Reshen Kudu)

Duba kuma 

 Jerin koguna na New Zealand

Nassoshi 

Shafuka masu fassarorin da ba'a duba ba