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 Sandhills Walk is an unmarked trail where you can explore trees, shrubs, wildflowers, and wildlife. The blue three-petaled spiderwort and prairie wild rose, state flower of North Dakota, are common. Birding opportunities are phenomenal and the views are gorgeous.