[muawiyah]

The Seymour mounds are about the same height as the Anderson mounds that have astronomical significance.

15 feet is typical; there are some taller ones about 20 feet high.

Adena and Hopewell structures are far larger, made of earth, and ordinarily have human remains and artifacts buried in them.

[blam]

"Adena and Hopewell structures are far larger, made of earth, and ordinarily have human remains and artifacts buried in them."

These are the ones I was referring to.

BTW, do you know who were the Adena? Have you read the stories about giant skeletons (with double rows of teeth) that the early settlers claim to have found in the region?