Unterterzen is a train station in the Canton of St. Gallen, Switzerland served by the St. Gallen S - Bahn line S4 as well as the Zürich S-Bahn line S2 during winter (Limited Service). The station consists of 3 platforms . This station is often used for access to the cable car station which is located approximately 5 minutes from the station. Trains run every 40' minutes then 20' minutes and so on and this pattern is followed daily.