I think the red circle marks the area were white 13 found its last resting place. (until the wreck was discovered many, many years later)
Comment by Jim Chandler: "Oberfelsberg sits on top of a hill overlooking the Saar River Valley and Saarlautern in WW2. The area was packed with field artillery and anti-aircraft units, as well as I&R teams from regiments of the 95th Infantry Division (The Iron Men of Metz)..."