I finally took the screen covering off of my first "bay" of the raised bed. Nearly all the tree bark and sticks I buried are rotted. I placed a small fence across the back today to temporarily thwart the armadillos that run along the fence line. The bed is raised about 4 ft as the yard slopes dramatically on that side. There are 8" limestone walkways every three or four feet between the bays, so I won't have to walk on the soil. I wondered about all that limestone, but the entire hill our neighborhood is built on is limestone. Doesn't look like much, but I'm kind of excited about getting started. The length of the bed is about 20 feet. It's not as big as yours, Dave, but I would have never thought about planting a vegetable garden there if I hadn't seen your article.