I'm not entirely clear what your question was. Most, if not all, of the territory covered by Canada's Prairie Provinces (Alberta, Saskatchewan and Manitoba), plus parts of North Dakota, South Dakota and Minnesota, drains into the Arctic Ocean. For the most part, the southern portions drain into Lake Winnipeg, then down the Nelson River into Hudson Bay, and the northern portions drain into the Arctic Ocean via the Mackenzie River.
Mackenzie River is located in the continent of North America. It is one of the longest rivers in Canada. Covering a distance of 1,800 km.
The Mississippi River starts in Minnesota ( actually begins draining out of Lake Itasca) and ends at the Gulf of Mexico
in southern B.C.
A prairie is rolling inland or grassland with fertile soil. It is west of the Mississippi River. It gradually is rising in elevation.
Two port cities on the Saint Lawrence River are Montreal and Quebec City. Both cities are located in Canada.
The Prairie provinces are located in Canada, and comprise the provinces of Alberta, Saskatchewan, and Manitoba, as they are covered partially by grassland. The Mackenzie River drains much of this region of Canada.
one of the three prairie provinces in western Canada; rich in oil and natural gas and minerals
the north saskatcewan river and the south Saskatchewan river.
The Detroit River separates Ontario, Canada from Michigan, United States.
The North Saskatchewan River flows through Alberta, Saskatchewan and Manitoba
It is a river in the Canadian provinces of Ontario and Quebec.
The Yellow River starts and ends entirely within China. Its source is in the Bayan Har Mountains and it flows through nine provinces before draining into the Bohai Sea.
A river end by draining out into the ocean.
Volga river
The two provinces surrounding the Great Lakes and the St. Lawrence River are the core of Canada's population and economic activity.
The Madawaska River is in New Brunswick and Quebec Provinces and flows from Lake Temisquata at Ville Degelis in Quebec Province down and into the mighty St. John River at Edmundston in Northwestern New Brunswick.
The Great Lakes, The Canadian Shield, The St. Lawrence River, The Prairies, and The Atlantic are the main geographical features in the Atlantic Prairie and Core regions of Canada.