Waterfalls of clouds

The night we arrived in Aniakchak we saw some amazing falls, but not from water but of the clouds. The rim of the caldera is 2000 feet high and the clouds pour over the side like a waterfall. Columns of clouds roll over the top and down the side of the rim and then disappate before touching the ground. All along the western rim clouds rolled over. It may sound like something you just want to look at for a few minutes and walk off but actually it was quite mesmerizing. We watched the falls for quite a while. My boss called it cloudfalls but others call it the niagra effect. What ever it is called it was an awesome welcome to the caldera.