How did nomadic Native Americans carry their belongings across the Plains before Europeans brought the horse to North America?

Before the introduction of horses by Europeans, nomadic Native Americans across the Plains primarily used dogs as pack animals to carry their belongings. They crafted sleds and toboggans to transport heavier items, which were dragged by dogs. Additionally, they used portable structures like tipis, which could be dismantled and carried easily, allowing them to move efficiently in search of food and resources. This adaptability was crucial for their survival in the vast, open landscapes.