Three Railway Companies on one day with double stacking, car transporters, freight and grain trains!

The route from Perth (Western Australia) to Adelaide (South Australia) is much flatter than the journey Adelaide to Melbourne (Victoria) through the Adelaide Hills that also has low bridges.
Less locomotives are needed and double stacking is possible on this route seen at Mallala, South Australia.
SCT Logistics 1PM9 SCT007 SCT004 Mallala, South Australia 2/07/24
Pacific National 2MP5 NR52 NR19 Mallala, South Australia 2/07/24
SCT Logistics 1471S CSR17 CSR21 Mallala, South Australia 2/07/24
Aurizon 4104S GWA001 RailFirst CM3315 Mallala, South Australia