After leveling the ground in our main 'Arc' structure we made a huge pile of rocks and dirt. We had to move the whole pile a few feet over to make sure we were in the shade of the wild pear tree and then shaped it into an herb spiral. This illustrates a dynamic plant guild of food and medicine plants with different habitat needs for sun, shade and water. The spiral was topped with corn. We used bamboo left over from the previous year to hold the garden in place.
Here is the final result.