Rainbow Pool, a broad (50 foot diam) heated pool in Black Sand Basin, will rarely erupt. Usually it is calm and mildly overflowing, allowing colorful thermophilic cyanobacteria and algae to grow around its edges. Yellowstone National Park, Wyoming, USA
Stock Photo: 07303 Location: Black Sand Basin, Yellowstone National Park, Wyoming, USA Format: Digital 3:2 Copyright © Phillip Colla, all rights reserved worldwide. Purchase a print of this image Request a review copy of this image Keywords: black sand basin, environment, geothermal, geothermal features, landscape, national parks, nature, outdoors, outside, rainbow pool, scene, scenery, scenic, spring, usa, world heritage sites, wyoming, yellowstone, yellowstone national park, yellowstone park |