Is there any myths or legends about the Mississippi river?

Answer 1

yes there is

Answer 2

Yes, there are several myths and legends connected to the Mississippi River. One well-known tale is about the "The Legend of the Piasa Bird," a mythical creature said to have terrorized Native American tribes along the river. Another legend involves the "Ghost of St. Genevieve," a ghostly figure believed to haunt the town of St. Genevieve along the riverbanks.