the "commune" of gap is surrounded by 17 "communes": laye, saint-laurent-du-cros, forest-saint-julien, la rochette, rambaud, jarjayes, neffes, châteauvieux, lettret, pelleautier, la roche-des-arnauds, la freissinouse, la fare-en-champsaur, poligny, le noyer, le dévoluy, rabou