Have just read about Cassel & was going to try Multimap 'BirdsEye' but ended up messing with Google to try & visualize things a bit better. Accidentally zoomed in too far and discovered...that they have Google Streetview in the sticks over there!!! If I am not mistaken this looks like a view towards 'Wally' Munn's 2pdr position, somewhere to the left of the gable-ended house, camera car being on the second sharp bend on the way into the village. This has blown me away in terms of visualising the terrain and, I expect, my future understanding of the combat situations the chaps found themselves in.