Image shows the excavation site for the River Pump House looking west. The Columbia River can be seen in the upper right portion. Several pieces of construction equipment are also visible.
"1 photograph; 8.8 x 14.1 cm.
H.E.W - Atomic bomb plant - Process Bldg. The Text on front of image reads: ""H.E.W. - Atomic Bomb Plant - Process Bldg. Photo by Robley L. Johnson."" The Text on back of image reads: ""100-B Reactor""."