1) Archaeology of Japan
Found on
https://www.crosswordclues.com/clue/shell-ring
Shell rings are archaeological sites with curved shell middens completely or partially surrounding a clear space. The rings were sited next to estuaries that supported large populations of shellfish, usually oysters. Shell rings have been reported in several countries, including Colombia, Peru, Japan, and the southeastern United States. Archaeolog...
Found on
http://en.wikipedia.org/wiki/Shell_ring
No exact match found.
