I found this on a Google search, which I expect you've already done, Ian. Noting that date of expansion in the 1750s, I wonder if a village might have been submerged to provide water? This we know has happened both in the Treweryn Valley in Wales, and also in the Lake District. Marged "Merseyside's largest body of inland water offers picturesque lakeside trails & walks as well as national competitive powerboating & angling events. Once simply a mill pond built to power Carr's Mill, this was hugely expanded in the 1750s to provide water to the new St.Helens Canal, about a mile away. The lake is a firm favourite, busy with anglers & water sports enthusiasts. It's also a great place for birdwatchers - look out for herons, great crested grebes, coots & various species of duck and gull." Can anyone help solve a riddle? Talking with friends tonight, they said they had been informed that under Carr Mill Dam, St Helens, there was an abandoned village. Can anyone clarify this? Best wishes,