ref: 886225f5deeeb3c52d58a16a97fe35677b7dbf2a dir: /data/maps/headers/Route4.asm/
map_header Route4, ROUTE_4, OVERWORLD, SOUTH | EAST connection south, Route3, ROUTE_3, -25 connection east, CeruleanCity, CERULEAN_CITY, -4 end_map_header