This Cenotaph was erected to honour the memory of the members of the Mille Roches and Moulinette communities who gave their lives in the First and Second World Wars.
Milles Roches and Moulinette were among six villages and three hamlets lost with the Hydro and St. Lawrence Seaway projects of the 1950s. On July 1, 1958, the last coffer dam was opened, allowing the waters of the St. Lawrence River to roll over 16,000 hectares of river-front property west of Cornwall. In preparation for this flooding, 6,500 inhabitants were relocated and many homes and structures moved to unaffected areas. Some buildings were preserved at Upper Canada Village as well as the Lost Villages Museum. In the case of the Mille Roches and Moulinette Cenotaph, it was moved to the Lost Villages Museum site to ensure the sacrifice of their citizens would not be forgotten.