Weetuck
The Weetuck were giant monsters from the Mohawk Native Americans. They’re thought to have been as tall as a pine tree and capable of wading into rivers 12-14 feet deep, catching multiple sturgeon at once. They hunted bears for sport by hitting them with large tree branches. They are thought to have lived ten generations or several centuries ago. Despite their ferocity, they were seen as peaceful to humans and could be placated with offerings of meat. Some think the legend can be related to the discovery of bones belonging to wooly mammoths, and there were bones found in Claverack, New York that were thought to belong to the Weetuck.
Citations:
Maberry, Jonathan. Vampire Universe: The Dark World of Supernatural Beings That Haunt Us, Hunt Us, and Hunger for Us. United States, Kensington Publishing Corporation, 2006.
Mayor, Adrienne. Fossil Legends of the First Americans. United States, Princeton University Press, 2013.