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The Morning Glory Pool is a geothermal hot spring within Yellowstone National Park’s Upper Geyser Basin. Its striking yellow color originates from thermophilic bacteria thriving in the consistently heated water. The pool's shape has evolved due to visitor contributions and ongoing geological activit...
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Grand Prismatic Spring is a large natural hot spring within Yellowstone National Park. It’s notable for its immense size – approximately 112 meters wide – and vibrant colors produced by extensive bacterial mats thriving in the geothermal waters. These mats create distinct bands of yellow, orange, gr...
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