Which Native American tribe is known for its agriculture and trade practices at river confluences in North Dakota?

The Mandan tribe is particularly known for its advanced agricultural practices and strategic trade activities at river confluences in North Dakota. Located primarily along the Missouri River, the Mandan developed a complex agricultural system that allowed them to cultivate crops like corn, beans, and squash. Their settlements were established at the confluences of rivers, which provided fertile soil and abundant water resources for farming, enhancing their ability to sustain larger populations.

This geographic advantage also positioned the Mandan as a pivotal trading hub. They engaged in extensive trade networks with other tribes and European settlers, exchanging not only agricultural goods but also items such as hides and crafts. The combination of agriculture and trade contributed significantly to their societal structure and economic resilience.

While the Sioux, Arikara, and Hidatsa tribes also had their unique practices and histories, it is the Mandan who are specifically recognized for their emphasis on agriculture and trade at key river locations in North Dakota.