The Thames and the Mersey.
Other than what?
Peterborough UK has only one river - The River Nene. Poshboatz.co.uk offer peterborough river boat trips
The modern acceptance of the name is meaning between the Dee and the Don, the two local rivers.
Trent, Tay, Plym, Tamar, Mersey, Ribble.
confluence
There are 32 rivers in the UK! including the Thames and Trent which is the largest in England
Tigris and Euphrates rivers gave mesopatamia its name
Ebro, Tajo, Guadalquivir, Guadiana, and the Duero are Spain's main rivers.
lakes, rivers, mountains and plateu
The land betwen 2 rivers
The Clyde, the Severn and the Avon are but three of the rivers in the UK.
The Tigris and the Euphrates river