North Dakota (Re)Visited:
North Dakota is at the center of North America. To get to the geographical center of North America go to Rugby, North Dakota. There is an obelisk to mark the spot.* The more accurate spot is in a remote slough somewhere out of town†.
National Parks in North Dakota:
Theodore Roosevelt National Park
Universities in North Dakota:
University of North Dakota
North Dakota State University
* I remember that a friend commented on all the phallic monuments. She thought there should be a few yonic symbols on monuments.