The two boys and I selected some 6' x 3' (I told them we were digging graves) sites in the yard of the new place, dug out a couple of feet of rocks and roots, churned up the ground, and replaced it with sifted topsoil from another site we were preparing to be the next hole, to make garden plots for my wife to plant vegetables in. I nailed 4" x 12"'s to 2" x 4"'s for frames, with rocks underneath, for her to stand on and be able to reach all of the vegetables without getting in there with them. There's a slope, so we raked an embankment of dirt at the end, backed up by rocks, with which we also ringed the rectangle on the outside.