The river flows for 70 kilometres (43 mi) through the southernmost part of the Mackenzie Basin before reaching the Ahuriri Arm of Lake Benmore, one of the lakes in the Waitaki hydroelectric project.

From there, the waters join with those of the Waitaki, which has its outflow in the Pacific Ocean.

Much of the upper portion of the river is in the Ahuriri Conservation Park,[1] and it is a well-regarded fly fishing river, supporting both brown and rainbow trout.

[2][3] A notable rock formation, the Omarama or Ahuriri River Clay Cliffs, is located close to the river's north bank some 10 kilometres (6.2 mi) west of the township of Omarama.

You can help Wikipedia by expanding it.This article about a river in the Otago region is a stub.