Grand Prismatic Spring, Midway Geyser Basin, Yellowstone National Park, Wyoming, USA, North America

america american area areas basin conservation day daylight daytime during energy exterior exteriors geothermal geothermic geyser geyser geysers grand hot hot spring hot springs midway national national natural nature nobody north of outdoor park park parks photo photos power preserve preserves prismatic reserve reserves sanctuaries sanctuary shot shots source sources spring spring springs states the thermal united us us american usa well wells wildlife wyoming yellowstone