I gave a section above the upper a second pass with the eletric weedwhacker, and then, I started preparing the ground so that the mower can pass through. This meant gathering up sticks, large branches, digging up rocks, and getting rid of high spots and low spots with a shovel. There was one very big log (or branch?) that I had to cut in half with an electric chainsaw so that I could move it. Moving it was still quite difficult, even in half. Wood is pretty darn heavy! I started a second hugelkultur raised bed with that log, since it appeared to be inhabited by ants, and I didn't want them getting into my first hugelkultur raised bed. I'll need to take a picture of the second hugelkultur raised bed, because I don't think you can see it too well in the picture of the area around the pond.