I don't understand how to put in terraces, or swales if the ground is level. How far down are you talking about digging? We actually have access to a tractor my dad is letting us borrow to move some mulch that we got from a tree cutting company and are putting it down like Paul says in his You Tube video about Back to Eden Gardening. Thanks for any info. In your book I only read about good bugs and bad bugs, deer, squirrels, rabbits, but nothing about moles, voles, or gophers. I'll have to look again. I didn't see that the book said anything about removing grass either, but instead a clean slate. I'm just a goober I guess, but I do want to do this and do it right.