People on a cordwood bridgeway at the Grand Prismatic Spring, Midway Geyser Basin, Yellowstone National Park, Wyoming, USA

america american area areas at attraction attractions basin bath baths being beings bridgeway conservation cordwood day daylight daytime during energy exterior exteriors geothermal geothermic geyser grand hot hot spring hot springs human humans midway national national natural nature north of on outdoor park park parks people people person persons photo photos power preserve preserves prismatic reserve reserves sanctuaries sanctuary seeing shot shots sight sights site sites spring spring springs states the thermal tourist united us us american usa wildlife worth wyoming yellowstone