 rituals and rites on mounds, and their king lived on a mound. And a lot of these mounds are in floodplains, too. That's how come they're so easy to pick out on maps and such. There's some mounds here in southern Illinois that are half a mile wide and as much as a mile and a half long. And they're step-tiered mounds. And they're all over the place. There's a mound just south of us here