If you are a techie, or if you want to see what goes on in that big building over there, it's worth stopping. Great interactive display with huge video screen showing what they do there. You can see Yellowstone the supercomputer in the adjacent room.
Visitors are welcomed during business hours. A great introduction video goes over why the super computer came to Cheyenne and some history. Informative displays and information is offered in the visitor area. You can see the complex super computer system through a glass window. Great experience at no cost.