You wouldn’t really expect many in Wales itself, because ‘mere’ is from the Old English. There are a few in Shropshire (including Ellesmere – the other end of t

You wouldn’t really expect many in Wales itself, because ‘mere’ is from the Old English. There are a few in Shropshire (including Ellesmere – the other end of the never-built Ellesmere canal on its way to Ellesmere Port) and there are some in the Fens and elsewhere. Apparently, there are a couple in Wales – near Wrexham and in Pembrokeshire. (I got this from https://en.wikipedia.org/wiki/Mere_(lake)… https://en.wikipedia.org/wiki/Mere_(lake)…). I suspect there’s a Mercian link here somewhere…