23 janv. 1070 - Great Serpent Mound
Description:
1070 CEEarthwork/effigy mound
Adams County, Southern Ohio
The head of the serpent aligns with the summer solstice sunset, and the tail points to the winter solstice sunrise.
Ajouté au bande de temps:
Date:
23 janv. 1070
Maintenaint
~ Il y a 956 ans