![The sky above Yellowstone The sky above Yellowstone](icons/ufo.jpg) Alien spaceships? (Altocumulus lenticularis) | ![The sky above Yellowstone The sky above Yellowstone](icons/grotto_geyser.jpg) Cirrus above the steam of Grotto Geyser | ![The sky above Yellowstone The sky above Yellowstone](icons/yellowstone_fall.jpg) Cumulus humilis above Lower Falls of the Yellowstone River | ![The sky above Yellowstone The sky above Yellowstone](icons/yellowstone_fallbig.jpg) The sky's glorious light caught in the Lower Falls of the Yellowstone River |
![The sky above Yellowstone The sky above Yellowstone](icons/tower.jpg) Cumuli above erupting Tower Geyser | ![The sky above Yellowstone The sky above Yellowstone](icons/ofevening.jpg) Altocumulus above Old Faithful Geyser (not erupting) | ![The sky above Yellowstone The sky above Yellowstone](icons/daisy_geyser_distant.jpg) Altocumulus lenticularis behind Daisy Geyser | ![The sky above Yellowstone The sky above Yellowstone](icons/castle_geyser_1.jpg) Stratocumulus at sunset; Castle Geyser in «steam phase» |