yellowstone backcountry mountains and flowers

afternoon alight background biology boiling boulder bubble conservation cycle distance distant ecology feature fields flats flowers foggy formation geology geothermal grass grasslands green group hayden highlight highlights hills hot landscape light lodgepole morning mountains national northern open park pattern peak pines pool rabbitbrush rise rolling sage sagebrush section setting shape shine silhouette silhouettes sky spring steamy stream strength sun thermal valley vast volcano wide wild wilderness wildlife winged wings wonder wyoming yellowstone