We went to Ootsuchi everyday to clean up debris from the foundation of houses. Sometimes we find the concrete, sometimes it is all earth only. In those cases, we will only plow through about 10cm deep of earth to clear any debris that come out of it, then all will be smoothed out.
Today at this site, it amazed me that the ground looked EXACTLY the same at the end of the day as it was at the beginning of the day. Only, we had a little mountain of debris on top of it as the sole evidence that we have actually worked! I find it fascinating, as if it is some archaeological artifacts in a deep slumber in the soil, awaits to be unearthed to see the sun again. I guess in some ways they are the same. They are all proves that people have once lived.