Keywords: Pools yellowstone hydrothermal colors blue green.jpg en <br/> Image title Pools yellowstone hydrothermal colors blue green Image from Public domain images website http //www public-domain-image com/full-image/nature-landscapes-public-domain-images-pictures/hill-public-domain-images-pictures/pools-yellowstone-hydrothermal-colors-blue-green jpg html http //www public-domain-image com/public-domain-images-pictures-free-stock-photos/nature-landscapes-public-domain-images-pictures/hill-public-domain-images-pictures/pools-yellowstone-hydrothermal-colors-blue-green jpg Jon Sullivan Not given Transferred by Fæ on 2013-02-28 This file is in public domain not copyrighted no rights reserved free for any use You can use this picture for any use including commercial purposes without the prior written permission and without fee or obligation PD-author Jon Sullivan Images uploaded by Fæ Public-domain-image com Geothermal features in Yellowstone National Park Volcanic landforms in Wyoming Unusual sights of nature in the United States |