Sister Thalys TGV unit to that featured in Jean-Marc Frybourg's PC/SC cab shot (photo id 262389), No 4305 races south near Arras on a Cologne to Paris service. I call this location the 'big dip' as the high speed line races down to the River Scarpe before climbing again. Nearby, between the LGV and the A1 Auto route, lies a small British WWI war cemetary called 'Happy Valley'.