The Canadian Armed Forces dispatched a search and rescue crew to northern Quebec on Friday after getting a distress call from a crash landing.
They discovered a plane had crashed near Lac Boulene leaving only one survivor.
Members of the Armed Forces parachuted to the crash site and brought the sole survivor to Chibougamau, about 700 km north of Montreal, and provided medical assistance. He has since been released from hospital.
A Sureté du Quebec helicopter will be used to recover the bodies of the three men who died in the crash. There is no road access to the crash site.
According to the SQ the four men, all friends in the 60s and 70s, were flying to the remote region on a fishing trip.
The Transportation Safety Board is working to determine exactly what caused the crash.