I dunno....
There are literally thousands of stone walls all over Connecticut, aligned in all sorts of directions. Most were built by early settlers in Connecticut to contain cattle. Many of these have been partially disassembled.
It is entirely possible for one of these to be aligned with specific solar positions, but just by chance. Some of these rocks could have had carvings on them.
Connecticut’s Pre-European Residents aligned their stone structures to show later settlers the way to their casinos. This has worked out well for them, as instead of smallpox-infested and shoddy trade goods, the settlers now bring cash.
Not having read the whole article yet, I don’t know what he means by “stone walls”. Anyone who grew up in any wooded area formerly settle by Colonial and Early American settlers has seen those walls. (I wonder how many were destroyed in the exurban spread of the last thirty years?)
This guy *must* have run into the American/Amerindian identification choice before. He may be referring to some completely different walls, or even walls that were “adopted” for use by early European settlers.
Surely such presumably ancient structures would show up of specialized aerial photographs. There are a hundred speculative purposes for such walls. First I’d like to know if these “walls” actually exist.