Reader Jon A sent some photos from Groton:[Note this is not a pile fallen off a boulder but a pile built up against a boulder.]
First cave:Second cave:Note the pile of rocks built, presumably as a wind break:
This is about rock piles and stone mound sites in New England. A balance is needed between keeping them secret and making them public. Also arrowheads, stone tools and other surface archaeology.
Classic talus caves of Devil's Den fame.
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