See below for more photos of Christmas Hill, July 1953
Medical officers and corpsmen were placed in several battalion aid stations and in the front lines to study the problems of stress, dehydration, plasma expanders, and resuscitation at the most forward areas. In addition, the collaboration of divisional medical officers was obtained in originating work at this forward level.
-From Battle Casualties in Korea, Studies of the Surgical Research Team, Vol.1: Introduction-Historical Background and Development, Captain John M. Howard, MC, USAR, Director, Surgical Research Team in Korea
Looking at the Chinese, Christmas Hill, Korea, July, 1953 
Sgt Harrison, Sgt Lingle in trench, Christmas Hill, Korea, July 1953 
Front line trench at Christmas Hill, Korea, July 1953 
Norm Dial at Battalion Aid Station, Christmas Hill, Korea, July, 1953 
Bunker at Christmas Hill, Korea, July 1953 
Norm Dial in trench at Christmas Hill, Korea, July 1953 
Bunker over a part of the trench, Christmas Hill, Korea, July, 1953 
Tunnel at crest of Christmas Hill for passing from one side to the other without exposing silhouette, Korea, July 1953 
Bunker on top of Christmas Hill, Korea, July, 1953 
Rear side of Christmas Hill, Korea, July, 1953 
Rear side of Christmas Hill, Korea, July, 1953 
Rear of Christmas Hill, Korea, July 1953 
Chinese lines at Christmas Hill, Korea, July, 1953 
Road back from Christmas Hill, July, 1953 
Chinese lines as seen from Christmas Hill, July, 1953
46th MASH 