Locker map
The Locker map is a specific treasure map in Dragon Quest IX. It is named for the player who randomly received it and subsequently shared it via Tag Mode. Like the Masayuki map, the map acheived massive popularity in Japan.
Map Contents
The Locker map is famous for the high amounts of very rare treasure chests it contains. In particular, it contains 4 tier S and 6 tier A chests, greatly increasing a player's chances of receiving very rare items. For more info on the map's contents, see here (Warning! Site is Japanese).