- North Dakota is a state in the Great Plains of the United States. Since Lewis and Clark wintered here along the Missouri River, the land has become known for its rugged badlands in the west, fertile farmlands in the east, and ample hunting and fishing throughout. It is the least visited state in the United States, and many travellers often overlook it. Do not let that deter you, because this beautiful state will allow you to enjoy numerous outdoor attractions and wonderful landscapes.