Lemieux

On May 4th 1971, residents of St. Jean Vianny in the neighbouring province of Quebec were going about their daily affairs when the unthinkable happened and the ground suddenly slid away from beneath them. On that tragic day, 40 homes disappeared and 31 people lost their lives in a horrific mudslide, caused by the lethal combination of record rain falls and a rare subsurface called Champlain Sea Clays or Leda Clay that turned into mush when saturated.