Cass River (Mackenzie District)

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For The Cass River which is a tributary of the Waimakariri, see Cass River (Selwyn District).
Cass River
Origin Hall Range
Mouth Lake Tekapo
Basin countries New Zealand
Length 38 kilometres (24 mi)
Source elevation 1,900 metres (6,200 ft)
Mouth elevation 710 metres (2,330 ft)

The Cass River is an alpine river in the Canterbury Region of the South Island of New Zealand. It rises in the Hall Range immediately below Rankin Pass, and also receives water from the nearby Huxley Glacier.[1] After dropping 600 metres (2,000 ft) very rabidly the river flows south with braided channels along a flat-bottomed valley for 25 kilometres (16 mi). The Leibig Range and Gamack Range are to the west, and the Haszard Range to the east.[2] The river flows into the west side of Lake Tekapo were it has built up a gravel delta.[3]

The Cass River is named for Thomas Cass, Chief Surveyor of Canterbury Province from 1851 to 1867.


  1. ^ New Zealand 1:50000 Topographic Map Series sheet BX16 Mount Elie de Beaumont
  2. ^ Wises New Zealand Guide, 7th Edition, 1979
  3. ^ New Zealand 1:50000 Topographic Map Series sheet BY17 Lake Tekapo