20.O18 [Milieu Chateau Near Stag Crossroads, Houthulst Forest] December 18, 1917
Covers an area equivalent to squares O18 and 24 and P19 on the corresponding WWI map sheet 20. [Milieu Chateau is located in the bottom, right-hand corner of square O18 and Stag Crossroads in P19]. Negative roll 9B, photo 177. Annotations on recto: north arrow pointing to the left. Annotations on verso: 2 pencilled circles labelled "STAG + Rds" and "MILIEU CHAT." Placement of annotations corresponds to their exact locations on the recto. WWI Aerial Photograph Collection: Box 1, Envelope 34.