Granite sills and slabs from an old house or barn. What regulations should apply in historic districts? The highest bidder?

The main problem is that stone is both a traditional building material and the marrow of the most important archaeology in New England.  The management of stone walls cuts deep into the conflict between community control of their landscape it shares, and the rights of private property.  There are no easy answers.

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This we protect. Why not free-standing stone walls in the woods?