It was not a real problem finding Pierre au Loup - I am used to hunting down sites like this one!! I drove along on the lookout for it and was lucky. I own a number of the IGN series 1:25,000 and 1:50,000 maps and do use them, although I have relied on the Meg Portal ACME maps too. Generally the Meg Portal locations given in France are pretty good (probably much thanks to your work over the years). Your suggestions regarding other sources of info is very helpful. Some of the Meg Portal Spain and Portugal locations were clearly less reliable and I am contributing GPS coordinates for the sites there which I visited.
Something is not right. This message is just to keep things from messing up down the road