We travelled down the Strezlecki Track from Innamincka to Lyndhurst, then went up to Marree and drove up the Oodnadatta Track, staying overnight at William Creek ( population 6, which is three times what it was 20 years ago, when I was last there!)
The Oodnadatta Track follows beside the old Ghan railway line, built across the deserts in the late 19th century, and closed in 1980.
I’m sending this on the iPhone, so will keep it brief for now – but here’s a few phone photos: Cooper Creek, one of the great inland rivers at Innamincka; the old Ghan rail line at Currimurka; and sunset over the desert at William Creek.