Effigy Mounds National Monument
I feel, when you come to Effigy Mounds, you feel it. A lot of people don't understand it but there is something you feel. There is a sacredness here. Effigy Mounds National Monument is a cemetery. We figured about 90% of the mounds are probably burial mounds or contain human remains of some sort.---
More Information can be found at: https://www.nps.gov/efmo/index.htm and https://en.wikipedia.org/wiki/Effigy_Mounds_National_Monument