Perhaps that shot could be Kowulka, near Penong SA. The existing line heading left being the new line going via the limestone pits at Kevin. The photographer is standing on the old line that went to Thevenard via Koonibba.
I would say that Zeehan pic was taken in the 1960s when Zeehan had little mining and the passenger traffic had dwindled to little more than what is carried today on the twice weekly minibus service. Mt Lyell concentrates had perhaps just started to be loaded in Zeehan yard before heavier rail was laid as far as Melba Flats . Then Zeehan station and yards was rapidly demolished and EBR passenger services abandoned.