C-GWQH, a privately registered Cessna A150L aircraft, was on a VFR flight from Ottawa/Carp, ON (CYRP) to North Bay, ON (CYYB) with 2 persons on board. As the aircraft was flying at an altitude of 4500 feet ASL over a remote area of Algonquin Park, ON, the engine (Teledyne Continental O200-A) partially lost power. Subsequently, the engine completely stopped. The pilot declared MAYDAY and then executed a forced landing in a marshy area. During the touchdown, the nose wheel dug into soft ground and the aircraft nosed-over.
The aircraft came to rest inverted and was substantially damaged.
The pilot and the passenger received minor injuries. A search and rescue aircraft was dispatched from the Joint Rescue Coordination Centre (JRCC) in Trenton, ON and rescued the occupants.