Afon_Tafwys
Afon_Hafren
Camlas
Afon_Dyfrdwy
Afon_Merswy
Thomas_Telford
Dyfrbont_Pontcysyllte
Afon_Humber
Afon_Trent
Ellesmere_Port
Afon_Tyne
Afon_Avon_(Bryste)
Afon_Medway
Camlas_Llangollen
Moryd_Clud
Afon_Tefeidiad
Afon_Avon_(Swydd_Warwick)
Afon_Derwent_(Swydd_Derby)
Afon_Nene
Camlas_Morgannwg
Camlas_Sir_Fynwy_a_Brycheiniog
Camlas_Grand_Union
John_Smeaton
Camlas_Bridgewater
Afon_Weaver
Cwch_camlas
Camlas_Trefaldwyn
Afon_Great_Ouse
Camlas_Trent_a_Merswy
Lifft_cychod_Anderton
Camlas_Castell-nedd
Afon_Cam
Camlas_Kennet_ac_Avon
Rhaeadr_Bwlch_yr_Oernant
Afon_Ouse_(Swydd_Efrog)
Loc
John_Rennie
Camlas_Peak_Forest
William_Jessop
Afon_Don_(Swydd_Efrog)
Afon_Witham
Camlas_Abertawe
Afon_Irwell
Afon_Rother_(Dwyrain_Sussex)
Y_Broads
Afon_Welland
Arfordir_Aberdaugleddau
Camlas_Cydweli_a_Llanelli
Tom_Rolt
Dyfrbont_y_Waun
James_Abernethy
Dociau_Manceinion