The picture below is a Marine Corps H-34D landing atop the "Rockpile" in I Corps, Northern South Viet Nam. The helicopter is from from HMM-161. It was taken in the fall of 1966 by this author.
The Rockpile is about half way between Dong Ha and Khe Sanh., only a few miles south of North Viet Nam, and about 20 miles from the Laotian border.
Infamous "Mutter Ridge" is less than one-half mile north of here.More on this later, perhaps.
(HMM means Helicoper, Medium, Marine)
Our dawg "Charlie" is a brother to the pictured H-34.