The Mound Builders built these earthen mounds, for burial tombs, as a tribute to their gods, or for some other religious purposes.
They built mounds so they could worship their god's and burials. Also for other religious purposes.
15 millions mound
The Wabash 'the paper' ran a article several years ago telling of a mound near the Laketon "fish trap". It had to be removed for the covered bridge to be built (now gone). A giant was dicovered over...
They are earthen mounds.