![](http://www.alamy.com/thumbs/6/8E656AD1-9C1C-42F7-BC92-D2A36785C815/2CFM697.jpg)
Obsidian Cliff in the Yellowstone National Park
Size: 8256px × 5504px
Photo credit: © Hanjo Hellmann / Alamy / Afripics
License: Royalty Free
Model Released: No
Keywords: algae, aquatic, canyon, cliff, cloud, creek, flora, flowing, forest, grass, landscape, meadow, mountain, national, nature, obsidian, park, pine, plant, river, scenic, sky, tour, tourism, travel, tree, vale, view, water, wild, wilderness, wyoming, yellowstone