To the OP, if you are in Magog, perhaps you might like to study up on the mythical Magog stone, which was quarried on Whetstone Island in Lake Memphremagog during the first half of the 19th century. While mentioned on the forums, my understanding is that there has yet to be an authentic photographic example shown (although lots of sellers on eBay will show a funky Washita stone for sale with the tag, Magog?). My wife and I visited the area a few years ago in search of one. No success on this front; but we found the region, including the town of Magog, quite agreeable.