2500 - 200 BCE | Stone
2500 BCE -- 200 CE | Stone
1000 -- 1600 CE | Stone, basalt
5000-1000 BCE | Stone
8000-1000 BCE | Stone, granite
700 - 1600 CE | Stone
7000 -- 2000 BCE | Chert
2500 -- 200 BCE | Stone
3000 BCE -- 100 CE | Stone
3000 -- 1000 BCE | Stone
1000 BCE -- 1000 CE | Stone
8000 - 5000 BCE | Stone
5000 -- 1000 BCE | Stone
