Frontier is a Crucible map in the Destiny expansion The Taken King.
This map is set in the outskirts of the city. It used to be a Transfer/Relay Station that would send supplies to the Twilight Gap. This map is a semi-symmetric map with a rail line running through the middle of the map. It is a good map for snipers because of open spaces, but it also has close-quarters areas inside the main buildings. This map is one of the front-runners for the new gamemode Rift.