ref: 9cfae346587676e8f7b345a41b0b55734da2dd23
dir: /data/maps/headers/Route21.asm/
map_header Route21, ROUTE_21, OVERWORLD, NORTH | SOUTH connection north, PalletTown, PALLET_TOWN, 0 connection south, CinnabarIsland, CINNABAR_ISLAND, 0 end_map_header