The location of this photo appears not to be 'the top of Cowan Bank' (in Up direction), but instead, at Eastwood (in the Down direction).
Same Main line, but some 8 to 10 miles South, and judging from the smoke, in the opposite direction.
Summary
DescriptionArhs 6012 cowan.jpg
English: Garratt locomotive 6012 tops the grade at Cowan
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{{Information |Description={{en|1=Garratt locomotive 6012 tops the grade at Cowan}} |Source=Own work by uploader |Author=Commissioner Geoff |Date= |Permission= |other_versions= }} <!--{{ImageUpload|full}}-->