sentences:  Early trappers would call the refuge this due to the areas prominent features.The refuge is located within the Upper Souris River Basin.Two other refuges are also located within the Souris River basin, namely the J. Clark Salyer National Wildlife Refuge and the Upper Souris National Wildlife Refuge The total area for all three refuges encompasses close to 24,600 square miles, with only 5,500 miles located in the United States.