Sources told CBC News a local woman led police to the body off Proven Road, near Fifth Concession Road, just northeast of Quyon, in the Municipality of Pontiac.
Boisvert disappeared from her home on Notre-Dame Street West in Montreal's Southwest borough one week ago, police said.
Her death is Montreal's second homicide of 2014, police said.
Her car was spotted in Ottawa on Tuesday, according to an Ottawa police source.
It has since been found in Ottawa.
Main suspect still sought by police
Major crime investigators and Montreal police forensic identification technicians were dispatched to the scene on Thursday and the investigation continues.
Police continue to search for the suspect in the case, 30-year-old Philippe Steele Morin of Gatineau. Montreal police are leading the investigation and they believe Morin remains in the Gatineau area.
Police said they believe Morin was the last person to see Boisvert.
Gatineau police said Morin has also been wanted since July 16 on charges related to an alleged domestic assault, as well as vehicle theft, mischief and breach of probation.
In Ottawa, Morin has been wanted since September for failing to appear in court on charges including possession for the purpose of trafficking, possession of the proceeds of crime and breach of probation.
Ottawa police say they've had dealings with Morin for more than 10 years and the most recent matters are domestic.Suggest a correction