Keywords: hayden valley yellowstone valley landscape green sky blue clouds panoramic panorama horizon nature water cloud yellowstone national park bison wyoming scenery graze mountains colorful wide usa tourist attraction places of interest Hayden Valley in Yellowstone.jpg en Hayden Valley in Yellowstone 2011-07-21 13 18 58 https //pixabay com/en/hayden-valley-yellowstone-valley-63564/ Steppinstars other versions Custom license marker 2016 08 14 Pixabay 63564 confirmed 1989 2016-12-10 Pixabay files for migration/Migrated Hayden Valley |