Medora ( www.medorand.com ) has a lot of family stuff to do if there are kids. It's in the SW on the S side of the Roosevelt Natl Park (S Unit). KDIK would probably be the best airport. Lake Sakakewea in the center of the State has lots of places to fish and waterski. There's a giant cow somewhere on I-94 between Bismarck and Dickinson. On Hwy 85 south of Amidon, there's an old stove with the door open. The sign says "open range". Lots of rodeos and county fairs all over the State. Abandoned missile silos in the NE and N Central part. Devils Lake is nice.
What can I say, ND was never billed as an ultimate tourist destination. It is what you make it and I've always liked ND.
Got a PM about Medora and the TRNP. I think that'll do it so we're covered.
Thanks to all for advice.
Casey