postman wrote:
Perhaps the sinkhole opened up during their time and it was felt necessary to construct the row right there and then, some kind of protection from it happening again.
Liking that! I know it's pure speculation and not likely to be in any way provable, but that has a nice feel to it. Although I suspect that the alignment of the row may suggest rather more careful planning than a quick reaction to an event.Be interesting to know if there is any way of "dating" a sink hole? In so far as "geological time" or "prehistoric time" or "modern" at any rate.