37116 Sister Dora approaches Muir of Ord with the Sundays only 6H58 18:35 Inverness to Georgemas Junction Enterprise service on 23 May 1999. Just two tanker containers on this exceedingly unusual freight working, unusual in that it ran on a Sunday on a line that had no other booked freight, and that the featherweight load traveled such a huge distance to a spot in the middle of nowhere, which at the time was the UK's furthest north freight destination. There was plenty of warning of 37116's approach, not just the inevitable Class 37 growl that can be heard for miles, but also because I heard it leaving Inverness on the scanner via the RETB system.