File talk:Dong Tam Base Camp, circa 1969.jpg

Comparing this photographic "print" to the aerial view on Google Earth and/or Google Maps, this photograph is almost certainly flipped laterally (mirrored in the horizontal direction).

I base this assessment on the surveyed straight channel, its intersection with the turning basin, the alignment of the perimeter road, and several other large features, such as the opening and orientation of the turning basin.