Most Canterbury rivers have braided shingle beds. Three, including the Waimakariri, have glaciers at their heads. Braided rivers are formed when sediment and gravel are carried down the river and deposited to form flat basins between the mountains and coastal plains. They are an important habitat for wading birds.
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GNS Science
Reference:
CN27850
Photograph by Lloyd Homer
Permission of GNS Science must be obtained before any use of this image.
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