This photo was taken in 1918. The Soldier wrote this note on the back of the photo: "The Pit, the most feared and respected place in the grounds. The bottles are full of mustard to be destroyed here. In Death Valley. The hole called Hades. You know me?" Signed C.W. Maurer at A.U. The Corps of Engineers has evidence to suggest that the Sgt. Maurer Burial Pit is located on 4825 Glenbrook Road. Additionally, based on past investigative data and removal actions, the site was used for burial operations by the American University Experiment Station for munitions, laboratory glassware, and drums of chemicals. The Corps has discovered items that are consistent with the items pictured in the Sgt. Maurer photo.