In the previous post, we saw a low rectangular mound that was different from the nicely built biscuits surrounding it. I forgot to mention one other out-of-sync pile, consisting of a layer of small rocks on a support boulder:
When you are extracting rocks from the ground, there will always be smaller ones. A characteristic of field clearing is that there are many smaller rocks mixed in with larger ones. That same size distribution was present pre-historically and it seems there was something that could be built from smaller rocks. I think I have seen this before without noticing it - a special, solitary, pile made from much smaller rocks.
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