Flumserberg is a resort area in the Swiss Alps, located in the canton of St. Gallen. It is composed of several villages at elevations between above sea level.
The resort sits on a terrace overlooking the Walensee and the Churfirsten range, above Flums in the Sarganserland region. Flumserberg mainly belongs to the municipality of Flums, with a small part belonging to the municipality of Quarten. The three main villages composing the resort of Flumserberg are: Tannenbodenalp (), Flumserberg () and Tannenheim ().
The resort features skiing areas during winter and several hiking and biking trails and a summer toboggan (Floomzer) during summer.
The Luftseilbahn UnterterzenâÂÂFlumserberg (SeeJet) gondola lift connects Tannenboden with Unterterzen via Oberterzen (intermediate station). The valley station of the cable car is located adjacent to Unterterzen railway station. An InterRegio () and a regional train ( of St. Gallen S-Bahn) call at the station.