1. The tributary whose source is furthest from the mouth of the river (measuring along the river of course). 2. The tributary whose source is highest above sea-level (often, but not always ...

Severe flood warnings are also in force on two Severn tributaries, the Vyrnwy and the Teme, and on the Severn's southern neighbour, the Wye. Rivers in Hampshire and Sussex are also at dangerous ...

Migratory fish especially have had a difficult time dealing with many of the changes the industrial revolution brought to the Severn and its tributaries. All that is about to change though and the ...