Dunanda Falls is on Boundary Creek in the SW corner of Yellowstone Park. It is 150 feet high with several hot springs just below it. The falls faces due south, and because of the mostly clear vertical drop, it creates a lot of mist and spray when the water hits the rocks at the base. During a full moon on a clear night, the moon will create a lunar rainbow in the mist or a moonbow. While I was standing watching the moonbow, it looked like a shimmery silvery blue arch. The digital chip saw the READ MORE...