A 42-year-old resident of Triangle died on September 5th when the vehicle he was driving on Joplin Road flipped over onto its roof and landed approximately 50 feet within the park. A 51-year-old woman who was riding with him was seriously injured and in critical condition but is expected to survive. The crash was not witnessed and the vehicle was barely visible due to forest foliage; a passerby noticed it and called 911 around 11:30 a.m. The on-duty ranger was only a mile away and was the first emergency responder on the scene. Both vehicle occupants were entrapped. The passenger was extricated from the car by Prince William County Fire and Rescue and transported to a critical care trauma facility via a waiting helicopter. The driver was pronounced dead at the scene. The on-duty ranger assisted with scene and traffic management for approximately three hours while the road was closed. The time and cause of the crash are under investigation by the Prince William County Police Department. Excessive speed may have been a contributing factor on the dry but winding road, but the time of the accident is not known.