FORTH
| 5 |
CYNON
| 5 |
CLYDE
| 5 |
WITHAM
| 6 |
ROTHER
| 6 |
MEDWAY
| 6 |
KENNET
| 6 |
HUMBER
| 6 |
DEARNE
| 6 |
THEMSE
| 6 |
TUMBER
| 6 |
SEVERN
| 6 |
WELLAND
| 7 |
WAVENAY
| 7 |
PARRETT
| 7 |
DERWENT
| 7 |
DERVENT
| 7 |
CAMBRIDGE
| 9 |
ACTONBURN
| 9 |
ADMERGILLWATER
| 14 |
AIRABECK
| 8 |
ALDERBOURNE
| 11 |
ALDERSBROOK
| 11 |
ALN
| 3 |
ANGLETARNBECK
| 13 |
APPLETREEWORTHBECK
| 18 |
ARDELEYBROOK
| 12 |
ASHGILL
| 7 |
ASHSTEADBECK
| 12 |
ASPENDENBROOK
| 13 |
AUSTWICKBECK
| 12 |
AYGILL
| 6 |
AYSIDEPOOL
| 10 |
BAILEYWATER
| 11 |
BALDONBROOK
| 11 |
BANNERDALEBECK
| 14 |
BANNISDALEBECK
| 14 |
BARROWBECK
| 10 |
BARWICKTRIBUTARY
| 16 |
BASHALLBROOK
| 12 |
BAYFORDBROOK
| 12 |
BAYSWATERBROOK
| 14 |
BENTSBROOK
| 10 |
BERRYBROOK
| 10 |
BEVERLEYBROOK
| 13 |
BEWALDETHBECK
| 13 |
BEWBUSHBROOK
| 12 |
BEZZABROOK
| 10 |
BLACKBECK
| 9 |
BLACKBOURTONBROOK
| 17 |
BLACKBROOK
| 10 |
BLACKBURN
| 9 |
BLACKCLOUGH
| 11 |
BLACKDIKEBECK
| 13 |
BLACKLYNE
| 9 |
BLACKMOSSWATER
| 14 |
BLACKOWATER
| 11 |
BLACKWATERRIVER
| 15 |
BLAKEBECK
| 9 |
BLAKESIKE
| 9 |
BLEABECK
| 8 |
BLEABERRYBURN
| 13 |
BLEABERRYGILL
| 13 |
BLEAWATERBECK
| 13 |
DEBEN
| 5 |
EAMONT
| 6 |
GOYT
| 4 |
IRWELL
| 6 |
ITHING
| 6 |
LAVANT
| 6 |
LONGFORDRIVER
| 13 |
MERSEY
| 6 |
RIVERAIRE
| 9 |
RIVERALLEN
| 10 |
RIVERANNAS
| 10 |
RIVERARUN
| 9 |
RIVERASH
| 8 |
RIVERAVON
| 9 |
RIVERAXE
| 8 |
RIVERBEAL
| 9 |
RIVERBEANE
| 10 |
RIVERBELA
| 9 |
RIVERBEULT
| 10 |
RIVERBEWL
| 9 |
RIVERBLAKEWATER
| 15 |
RIVEREASTALLEN
| 14 |
RIVERWESTALLEN
| 14 |
SOAR
| 4 |
TEST
| 4 |
THEBROOK
| 8 |
WEAR
| 4 |
WEAVER
| 6 |
YEO
| 3 |
TILL
| 4 |
WASH
| 4 |
LEVEN
| 5 |
SWIFT
| 5 |
TAMAR
| 5 |
COCKER
| 6 |
COQUET
| 6 |