Precolumbian Mounds: the Middle Mississippi Culture

I have also been to visit some of the Mississippi culture mound sites.
Angel Mounds in (very southern) Indiana:

And Chucalissa Mounds (the word means 'empty house' in Choctaw).

The mowing and reconstruction makes it easier to see the earthworks, of course, but it is hard to know how much of the site is then 'interpreted' and how much is real.
Nevertheless, they are fascinating.