Input (grade 10): Saint-Martin-de-Crau is a commune in the Bouches-du-Rh Ã ne department in southern France.
Output (grade 5): Saint-Martin-de-Crau is a commune of 11,600 people (2005). It is found in the region Provence-Alpes-C Ã te d'Azur in the Bouches-du-Rh Ã ne department in the south of France.