"Archaeologists were able to date the site using a few tiny charcoal flakes they were able to isolate from a hearth-like feature they uncovered in a thin horizontal layer of soil called a paleosol, after digging down through layers of peat and soil."
In my town they discovered 10,000 year-old tools, the oldest in western Washington state. Pretty cool - although if I saw one on the ground I would just call it a “rock”!
Pretty neat though to go walking at the site and along the creek, and think about what was going on 10,000 years ago. While the vegetation has probably changed a bit, the land forms are all the same. 120 years ago it was large “old growth” fir trees, now it is farmland that has been left to go “wild”. With the lack of trees and more open terrain, it might be closer to how it looked 10,000 years ago than with the big trees!?