Spain planned and proposed narrow gauge lines. Future heritage, regional and industrial narrow gauge railway projects.
Spain narrow gauge lines formally proposed or in planning stages: heritage railway extensions to new termini, new tourist or mountain railways and occasional industrial or regional narrow gauge proposals. Data sourced from OpenStreetMap contributors tagging proposed alignments based on published plans from heritage railway organisations and local authorities.
Spain has 717 proposed railway segments including 581 railway, 53 tram, 34 metro, 18 light rail and 31 narrow gauge.