the line begins at wawona and 46th avenue station (near the san francisco zoo), which is on a one-way loop on vicente street, 47th avenue, wawona street, and 46th avenue. it runs north on 46th avenue to taraval street, then runs east on taraval street to 15th avenue. the line then runs south one block on 15th avenue, then east on ulloa street to west portal station, where it tags along with all the other muni metro lines towards embarcadero station.