where does the river alt start and end
River Alt The Alt runs from Hag Plantation in Huyton at 125 ft (38 m), through Croxteth Park, roughly follows the M57 motorway south of Kirkby, then flows north of Aintree and south of Maghull. Historically in Lancashire, it then runs south of Formby and empties into the Irish Sea, near the edge of the River Mersey estuary at Hightown.[2]
Tiber The Tiber (/ˈtaɪbər/, Latin Tiberis,[1] Italian Tevere, Italian pronunciation: [ˈteːvere])[2] is the third-longest river in Italy, rising in the Apennine Mountains in Emilia-Romagna and flowing 406 kilometres (252 mi) through Tuscany, Umbria and Lazio, where it is joined by the river Aniene, to the Tyrrhenian Sea, between Ostia and Fiumicino.[3] It drains a basin estimated at 17,375 square kilometres (6,709 sq mi). The river has achieved lasting fame as the main watercourse of the city of Rome, founded on its eastern banks.