NM 25 Pichi Richi Railway, South Australia. 

Here you see NM25 hauling carriages from Port Augusta through to Quorn, some 39 km, at the southern end of the Flinders Ranges.
The train is first seen crossing the Flinders Ranges Highway, then seen on the run into Quorn.
This is followed by the uncoupling in Quorn prior to going to the turntable for turning and the return trip to Port Augusta.
The small yellow unit with the water tank as seen that follows the train, is for any occurring spot fires.