In the world, there are a total of eighteen 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.
Note: The Pramonovo track near Moscow is still in low res. The Russian National Sliding Center is not yet built.