posted 11 years ago
Welcome to Permies, Melinda!
Check out the dump. Or rather what people are hauling to the dump. Bags are just an expedient way of holding the earth in an earth construction in one place. Other things that are used are tires (see Earthship) and form boards (lots of earth construction is done in lifts, raising the structure one foot at a time). Then there is the ancient way of making adobe blocks in forms and sun-drying them so that they will hold together on their own. If you see a large pile of waste destined for the landfill, and it can be filled with dirt, there's your source of 'bags'.