832-384317 - Young woman photographed, dead trees at Opalescent Pool with mineral deposits, Black Sand Basin, Yellowstone National Park, Wyoming, USA, North America
816-7872 - Opalescent pool in the Black Sand Basin, Yellowstone National Park, UNESCO World Heritage Site, Wyoming, United States of America, North America
832-123920 - Opalescent Pool, geyser, drainage area with coloured thermophilic bacteria, microorganisms, Black Sand Basin, Upper Geyser Basin, Yellowstone National Park, Wyoming, United States of America, USA