Fields at Langemark-Poelkapelle, Belgium: Photo taken from a position approx 50°55'13.4"N 2°54'54.6"E just west of Langemark German War Cemetery, facing approx north, towards the former location of the German trench from which the first gas attack was launched on 22 April 1915. In this area, the German trench system ran approximately from the farmhouse on the left to the group of willow trees visible on the right.