Kathryn's Report: Runway Excursion: Cessna 421C Golden Eagle, N21SG; accident occurred April 13, 2016 at Furnace Creek Airport (L06), Death Valley National Park, California
Cessna 421C Golden Eagle SP-FNV FOR SALE - YouTube
Cessna 411 - Wikipedia
Aircraft Photo of 71-1410 / AF71-410 | Cessna OA-37B Dragonfly (318E) | USA - Air Force | AirHistory.net #443451