My husband and I are planning to build our first smallish garden pond in the spring. We want to avoid digging because of a mature Sugar Maple and some other trees that likely have root systems that stretch into the area intended for the pond. (We don’t want to endanger the trees). We are thinking of constructing a raised pond and building up a berm around three sides (one of which will have a waterfall feature) with sitting “wall” along the fourth side of the pond. Has anyone ever done anything like this? Any pictures of something similar that’s been successful?