There were an estimated 100,000 mounds in America consisting of layers of clay, ash and stones.
Ohio had and estimated 10,000 mounds.
The great ancient city of Cahokia near St. Louis had approximately 150 mounds.
The biggest being 1000 feet long and 100 feet high.
Many were effigy mounds of various animals.
Wisconsin is the effigy mound capital of the world with Devil’s Lake having 734 and Crawford County over 500.
The Great Serpent Mound in Ohio is the most famous effigy mound and is 1254 feet long.
Giants have been frequently found buried in these mounds wearing all sorts of copper jewelry and sometimes with huge spears of gold and silver.