Montgeron - Crosne RER Station is one of the RER Station in Lignes RER Paris | RER Ligne-. You can find more information about which trains pass on this station. Métropolitain Parisien map is loading. Please wait. You can see all Itineraires RATP of Métropolitain Parisien on metro map. Métropolitain Parisien and RER Itineraires RATP and maps are all shown on this map.