PRISON CAMP, SON TAY, NORTH VIETNAM

• Document Type: FOIA
• Keywords: NORTH VIETNAM
• Keywords: POW
• Keywords: SON TAY
• Collection: FOIA Collection
• Document Number (FOIA) /ESDN (CREST): 0001437707
• Release Decision: RIPPUB
• Original Classification: U
• Document Page Count: 2
• Document Creation Date: June 22, 2015
• Document Release Date: July 21, 2009
• Case Number: F-2007-01204
• Publication Date: May 13, 1970

APPROVED FOR
RELEASE DATE:
14-Jul-2009.
IAS - 191/70 (b)(1)
13 May 1970 (b)(3)
MEMORANDUM FOR: Chief,
ATTENTION
S '3J ECT
pi-'son Comp; .'Son Toy, North V i otnem
REFERENCE (a)
(b) -E I {~H P~-PY-vj~e f-l4 .
(c) Photo Enlargement, 1-95 #f, Enclosure to
Memorandum IAS 69/70
1. This memorandum is in response to your continuing requirement
requesting analysis of installations in Southeast Asia which may
contain American POW's.
2. We have examined the specific areas of excavation that you
indicated on the photograph (Reference c). These excavations are
-irrigation canals. The canal south of the prison was constructed
prior to 9 July 1969 and the canal north of the prison was constructed
between 9 September and 9 November 1969. -
3. There is no photography showing these irrigation canals
under construction. Photography covering similar projects in
North Vietnam shows that the work is usual ly done by manual labor.
It is unlikely that a crane mounted on a boat or on a truck could
have been used in the construction of the canals because a bridge
with a low clearance prevents access by boat and the canals are
not road served. Concrete darns have been constructed at the point
where the canals join the river and both canals probably have pumps
for lifting water from the river. Swing booms, like those at wells,
could have been used to haul cement or to emplace the pumps, but
this is not a normal construction technique in North Vietnam.
 The f0 t l ow i iig materials were uti I i zed in this study.
tie . Ma
AMS Series L7014, Sheep 6151 III
6. Questions re rding this project may tie directed to the
Imagery analyst,0
V-" 'Director
Imagery Analysis Service
ENCLOSURE ement~
{'Annotated Photo Enlarg
Distribution
Orig - Addressee