In the world, there are a total of seventeen bobsleigh, luge, and skeleton tracks in use for competitions in bobsleigh, luge, and skeleton. All of the tracks on this list except St. Moritz, Switzerland, which is naturally refrigerated, are constructed of reinforced concrete and piped with ammonia refrigeration to cool the track down prior to its run.
Please see List of natural luge tracks.
These are tracks adapted from existing mountain roads and path. Artificial banking and refrigeration are prohibited.