In reply to Keendan:
In Ariège, almost all of the trad routes are in the mountains, which likely rules out most of them until late Spring. In addition, they're almost always multi-pitch routes, which sounds like it isn't what you're looking for. The only crag I know of that's largely trad, which will be accessible in Spring, is Le Pilier de Vents sector at Auzat (topo here: http://cafma.free.fr/auzat/fr_auzat.htm). This is a multi-pitch crag but obviously you only need to climb the first pitch if you so choose. However, I very much doubt you'll find enough there to keep you interested for 3 days, and I'm really struggling to think of other local options. The main problem is that most of the valley rock here doesn't lend itself well to trad protectability, and the few low lying crags that might do so, as Chris said, were bolted ages ago.