def rivers_with_station(stations):
    """Created a sorted list of Rivers with stations on them"""
    # Initialise rivers list
    rivers = []

    # Add river to list from station, if river is not present
    for station in stations:
        if station.river in rivers:
            pass
        else:
            rivers.append(station.river)

    # Sort list
    rivers.sort()
    return rivers