An earthbag root cellar might be just what you need. Made by stacking polypropylene bags filled with soil, this structure is built right into the hillside and covered with earth for natural insulation. It stays
A loop of barbed wire is placed between each layer of filled bags for tensile strength. Old and Recent Examples The superadobe (earthbag) method of building is a fairly recent invention, and does not have a long history. Some of the best examples of old would be the sandbag bunkers of ...