spring in yellowstone: beryl spring steams and boils along the grand loop road in the gibbon canyon group of gibbon geyser basin

background basin beryl blue boil boiling boils bubble caldera canyon day environment feature fumarole geology geothermal geyser gibbon grand gravel green group hot hydrothermal landscape late loop national natural nature nps outdoor park pool road roadside rocks roil roiling scenery scenic sinter spring steam steams thermal tourism travel trees vapor view volcano water wyoming yellowstone