The Northern Plains, Red River Valley & MId-Missouri River map
The central feature of the Northern Plains is the expanse of lowlands
draining both north, into Hudson Bay through the Red River and Lake
Winnipeg, and south into the Gulf of Mexico, through the Minnesota and
Mississippi. The north-south continental divide here is Lake Traverse
on the Minnesota-South Dakota border.
The Northern Plains regional map includes all of the Dakotas and
Minnesota, along with large portions of Saskatchewan, Manitoba and Ontario, much of Wisconsin, and parts of Iowa, Nebraska, Wyoming and Montana
.
Small - Scale is 1:2 million or 1" = about 32 miles
Large - Scale is 1:1.5 million or 1" = about 24 miles
