This is a story from Chickasaw Indians on what they believe about the flood and coming judgement: "Long ago, perhaps in the days when our Chickasaw ancestors still resided in the land of the setting sun, the Great Spirit, Aba'Binni'li', sent rain. Soon, water covered all the Earth. Some Chickasaws made rafts to save themselves. Then, creatures like large white beavers cut the thongs that bound the rafts. All drowned except one family and a pair of each of all the animals. When the rain stopped and the flood began receding, a raven appeared with part of an ear of corn. Aba'Binni'li' told the Chickasaws to plant it. Aba'Binni'li' also told them that, eventually, the Earth would be destroyed by fire, its ruin presaged by a rain of flood and oil." (The Chickasaw Nation, 2024)
Here is a quote from the Buffalo Bill biography. I had never heard this one but it is pretty close to the biblical account:
"During the scouting expedition that followed, the party chanced upon an enormous bone, which the surgeon pronounced the femur of a human body. Will understood the Indian tongues well enough to be in part possession of their traditions, and he related the Sioux legend of the flood.
It was taught by the wise men of this tribe that the earth was originally peopled by giants, who were fully three times the size of modern men. They were so swift and powerful that they could run alongside a buffalo, take the animal under one arm, and tear off a leg, and eat it as they ran. So vainglorious were they because of their own size and strength that they denied the existence of a Creator. When it lighted, they proclaimed their superiority to the lightning; when it thundered, they laughed.
This displeased the Great Spirit, and to rebuke their arrogance he sent a great rain upon the earth. The valleys filled with water, and the giants retreated to the hills. The water crept up the hills, and the giants sought safety on the highest mountains. Still the rain continued, the waters rose, and the giants, having no other refuge, were drowned.
The Great Spirit profited by his former mistake. When the waters subsided, he made a new race of men, but he made them smaller and less strong.
This tradition has been handed down from Sioux father to Sioux son since earliest ages. It shows, at least, as the legends of all races do, that the story of the Deluge is history common to all the world. "
(Wetmore & Zane, 2006)
Bibliography
The Chickasaw Nation. (2024). Story of the Flood. Retrieved from The Chickasaw Nation: https://www.chickasaw.net/Our-Nation/Culture/Beliefs/Legend-of-the-Flood.aspx
Wetmore, H. C., & Zane, G. (2006, February 18). Last of the Great Scouts - The Life Story of William F. Cody ["Buffalo Bill" Cody]. Retrieved from https://www.usgennet.org/: https://www.gutenberg.org/files/1248/1248-h/1248-h.htm#link2HCH0018