ref: 4ecff22f716aad9e9ad034cb0feae6cae273162e
dir: /data/maps/headers/CinnabarIsland.asm/
map_header CinnabarIsland, CINNABAR_ISLAND, OVERWORLD, NORTH | EAST connection north, Route21, ROUTE_21, 0 connection east, Route20, ROUTE_20, 0 end_map_header