Michael Palin crosses the Sénégal River from Rosso, Mauritania to Saint-Louis "French port", Gorée Island "Slavery port", to Dakar "capital" in Senegal. He takes the Bamako Express train to Bamako "capital", then along Niger River to Tirelli "Bandiagara Escarpment for Dogons", Djenne, Mopti, to Timbuktu.—WJCharliee