Yellowstone National Park Lower falls

Lower Falls, are the biggest (308-foot) tall waterfall in Yellowstone.

The canyon’s colors were created by hot water acting on volcanic rock. It was not these colors, but the river’s yellow banks at its distant confluence with the Missouri River, that occasioned the Minnetaree Indian name which French trappers translated as roche jaune, or yellow stone. The canyon has been rapidly eroded more than once, perhaps by great glacial outburst floods.
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