Pump Geyser photos


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Pump Geyser, Upper Geyser Basin, Yellowstone National Park, Wyoming Colorful bacteria mats mark the hot water flowing from Pump Geyser, Upper Geyser Basin, Yellowstone National Park, Wyoming Pump Geyser, Upper Geyser Basin, Yellowstone National Park, Wyoming Pump Geyser, Upper Geyser Basin, Yellowstone National Park, Wyoming

Updated: November 28, 2021