ref: 64da1f5d6bf96ff7f35165476ecc8d623f76060d dir: /data/mapHeaders/Route20.asm/
map_header Route20, ROUTE_20, OVERWORLD, WEST | EAST connection west, CinnabarIsland, CINNABAR_ISLAND, 0 connection east, Route19, ROUTE_19, -18 end_map_header