I didn't find this but I didn't really get a chance with some ill-luck. Bruno Marc's description in Dolmens et Menhirs en Languedoc et Roussillon says it's about 400m to the west of Flouirac farm with private access. (There's also the Menhir de la Caucalière near it.)
When I arrived at the farm there was nobody about to ask even after knocking at the door. So I was was just going to write a note to put on the windscreen of my car & set off anyway, when an elderly woman called from the upstairs window. She spoke unusually perfect English but what she said, I didn't want to hear. She claimed that there was no dolmen other than Dolmen de Flouirac back down on the road!
I'm not sure if this was a blatant lie, but there wasn't much I could do. It did occur to me to drive back down to the road, park, and then sneak back on foot. But I didn't really have time & wasn't comfortable enough with that degree of subterfuge.
I've been unable to find any photos or confirmation that the site still exists, though a quick Google search shows it is mentioned on some geocaching websites - suggesting it's still there....
Dispirited by 2 failures in a row & pressed for time, I went back down to the road & after another vague scan for Dolmen de Flouirac, I started the long drive back to Arles.
I couldn't spot this one from the road, but had a long journey back to our cottage near Arles ahead of me and a couple of other more promising (I thought) dolmens to try to find. I've seen photos of it & it's a nice little thing! (Curses - especially as I couldn't find the others I'd got planned!)
Apparently it's very close to the road but difficult to spot as it's masked by bushes.
Location slightly doubtful: I've placed this where I remember it, which fits in with Bruno Marc's description in Dolmens et Menhirs en Languedoc et Roussillon (which is how I found it) so I'd have thought it must be right. It also looks about right on Googlemaps. However, it may be worth knowing that http://www.t4t35.fr puts it at the other end of the village on the other side (south) of the road.
Access: Visible from the road across a field just past the last buildings of the little village of Le Barral. Bruno Marc & I reckon it's on the eastern edge of the village, to the north of the road. Seems to be on private property with no obvious access.
Visited Saturday 8 September 2007
A ruined but easily recognisable little dolmen built into a field wall. I didn't try to approach it (see above) but just used a big lens....