40 km from the one that goes to Albi, but why going there?
50 km from Carcassone, that can latter connect you to some others that go to Marseille/Côte d'Azur/Italy in one sense or Perpignan/Barcelona/Eastern Spain in the other one, you choose when you reach the Mediterranean.
70 km from Toulouse that can connect you Central/Western Pyrénées, Pays Basque/Western Spain, Bordeaux, or Paris.
And there is all that fuss going on for years for building one to connect Castres to Toulouse, lol, it remains only 37 km to build out of the 70, and they still didn't manage to get the agreement from central govt so far. The mayor seems to turn kinda crazy about that...