ChasF wrote: In most parts of France tracks have been created by farmers and hunters so their usefulness changes over time and you'll find that many marked on the IGN maps have disappeared or changed.
I was in Ardenne region in July 2012 and had both new and old 1:100 000 IGN maps. The new ones are easier to read- mainly because lots of small tracks have been deleted! Neither were accurate to what was on the ground in many cases. I was only bimbling around so didn't need to worry about U-turns, but on both this and a previous visit I did note '1-way' prohibitive signage as a previous poster mentioned. Of course if you're riding away from it you don't feel too guilty.
Definately worth poking around Codever website and note that some areas have schemes you can join to show you are nice and polite and you get a sticker. Not sure of benefit but it might go down well locally. I agree that the VERY FEW farmers and people you meet seem to be fine with M/C.
On-the-ground knowledge would really be an asset.
Someone asked for a typical view, well this is the 'easy' stuff I restricted myself to.

- P1000436.JPG (51.95 KiB) Viewed 950 times