"The mounds were built on fertile lands near where the Illinois, Missouri and Mississippi rivers come together." What can we infer about why they built the mounds in this location? *

The settlement in the Mississippian areas.

Explanation:

Native Americans had a culture in the Mississippi valley. Cahokia reached its peak between the 10th and the 14th century. Numerous settlements located near the river managed trade networks that stretched to all direction of North America. The Cahokia built large mounds for ceremonial, religious, or residential Europe for the elite members in the community. The first large scale of civilization in America was the Mississippian culture. Mounds are very much associated with the Cahokia located in Illinois. Many artifacts have found at the Cahokia mounds including stones, tools, pottery, knives, shells, and arrowheads.

i honestly speaking this is too long