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What is the main drainage system of the Canadian Great Plains?
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Great Plains
Flint Hills region, eastern Great Plains, east-central Kansas.
The main drainage system of the Canadian Great Plains is the Saskatchewan River and its tributaries.1
Rising in the Canadian Rockies of western Alberta, the system consists of two primary headstreamsâthe North and South Saskatchewan riversâwhich eventually unite and flow eastward into Lake Winnipeg. From there, the Nelson River serves as the ultimate outlet, draining the basin into Hudson Bay.23