News The most important rivers of Peru Ask those who believe they are missing. TOP 14: Tumbes River TOP 13: Ica river TOP 12: Napo River TOP 11: Huallaga River TOP 10: Chira river TOP 9: Rio Mantaro TOP 8: Holy River TOP 7: Ucayali River TOP 6: Marañon River TOP 5: Urubamba River TOP 4: Apurimac River TOP 3: Rio Chili TOP 2: Rio Rimac TOP 1: Amazon River