The J. Clark Salyer National Wildlife Refuge is located along the Souris River in Bottineau and McHenry counties and comprises almost 60,000 acres of lake. The area is old lake bottom and has extremely flat topography and a high density of temporary wetlands. The Grassland Trail passes through prairie habitat adjacent to a large marsh. There are several numbered signs and a brochure describing the area. The views are spectacular and wildlife is abundant. Birding opportunities are phenomenal.