- Upper Souris National Wildlife Refuge is located in the drift prairie region of north central North Dakota. The refuge straddles almost 40 miles of the scenic Souris River valley. The area is characterized by a narrow band of river bottom woodlands, fertile flood plains, native mixed-grass covered rolling hills and steep brush covered coulees.
The refuge hosts waterfowl numbers of up to 350,000 birds during the fall migration. These are primarily lesser snow geese. Tundra swans, pintails, canvasbacks, redheads, buffleheads and many more kinds of waterfowl either nest on the refuge or use the refuge during migration. Up to five species of grebes can be seen during the summer.