File:Map showing wet areas near Passchendaele village.png

English: Scale 1:10000; German Trenches corrected to 8-11-17. Title of base sheet: Passchendaele Station. Parts of Sheets 20 & 28. Apart from the German defences (in red), the most notable features of the map are the blue shaded areas. These mark the extensive wet and waterlogged areas facing the front. Exacerbated by poor weather and the devastation of the ground by the intense artillery bombardment, the conditions had continually hampered the advance. Such, in fact, was the fluid and incomprehensible nature of the terrain that the strong blue line marking the front is only an approximation. Map showing waterlogged areas on the western approaches to Passchendaele village, 1917