66520 is pictured near Waltham St Lawrence on 27 July 2007 with the 6M91 11:00 Theale to Earles empty cement tanks. The photo is taken from Chalkpit Bridge on the Waltham St Lawrence to Knowl Hill bridleway. There are several photo locations in the area, including the footpath bridge seen in the middle distance and a further one towards Shottesbrooke, but tall trees on the south side of the line means they all tend to be very shady on the main lines.