Suggest viewing large. "Big Red" is the name given to this sand dune, reputedly the largest in the Simpson Desert and the first of an estimated 1140 if crossing the desert. It rises some 40 metres above the surrounding plains and is just 35km from Birdsville. Driving 4WDs up and down its steep sandy slopes has become a "must do" for off-road enthusiasts. This image from the east, the PiPs show it across the top and from the west. These aerial views tend to give a flattened impression of it.