well I'll be .. searching for something COMPLETELY different and not connected with militaria and not seeking photos AT ALL..
i came across this !!! photos of the ruins of Camp Bouchard...presumably relatively (?) recent..
the attached photo shows some of the row of small calibre shell filling...or now that I think of it..more likely these were explosives mixing chambers
this would have been connected with photos 1=2 and 4 of the previous set
a link below to a couple other photos and the google earth map of the site
http://www.panoramio.com/photo/41022148