We grow a garden every year and I've been thinking about taking some of the more long storage vegetables and some supplies and storing them in a root cellar. I know I've got a lot of work to do, but I've seen some root cellars that are fantastic storage areas and that will keep the food safe for an extended time. I want to just use earth with some cement blocks under an earthen roof. The door would be at ground level and you would have to go down stairs to get to it. What do you thinK?