That's damn cool. I know a friend or two who like to camp in the winter.

Does anyone know if the Pawnee grasslands gets enough snow to build something like that?

Also seems like you could make a pretty sweet hunting blind this way. I don't know enough about hunting to know how practical that is, but I bet it would be comfortable.

Go to this page : http://www.grandshelters.com/icebox-design.html and scroll down through the pictures.