ref: a7dca30971a049a525e33bc43eaf2b18ce899c5e dir: /data/maps/headers/Route19.asm/
map_header Route19, ROUTE_19, OVERWORLD, NORTH | WEST connection north, FuchsiaCity, FUCHSIA_CITY, -5 connection west, Route20, ROUTE_20, 18 end_map_header