Chromatic Pool Geyser, thunderstorm clouds at the back, Upper Geyser Basin, geysers, geothermal hot-pools, Yellowstone National Park, Wyoming, USA

america american area areas at atmosphere back basin chromatic cloud clouds conservation day daylight daytime during energy exterior exteriors geothermal geothermic geyser geyser geysers head heads heat hot hot pools hot spring hot springs national national natural nature nobody north of outdoor park park parks photo photos pool pools power preserve preserves reserve reserves sanctuaries sanctuary shot shots sky source sources spring springs states stormy the thermal thunder thundercloud thunderclouds thunderhead thunderheads thunderstorm thundery united upper us us american usa well wells wildlife wyoming yellowstone