River Lea

The River Lea (or Lee) in England originates in Marsh Farm 51°54′37″N 0°27′40″W / 51.910338°N 0.461233°W / 51.910338; -0.461233, Leagrave, Luton in the Chiltern Hills and flows generally southeast, east, and then south to London where it meets the River Thames 51°30′26″N 0°00′33″E / 51.507113°N 0.009184°E / 51.507113; 0.009184, the last section being known as Bow Creek.