Asiantaeth yr Amgylchedd - cartref

Lefelau Afonydd: Derwent

Afon Tref Gorsaf Lefel Afon
Brompton Beck Brompton Snainton Ings
Hodge Beck Fadmoor Cherry Farm
Hovingham Beck Hovingham Hovingham
Levisham Beck Levisham Levisham Mill
Pickering Beck Pickering, Ings Bridge
Pickering Beck Newton-On-Rawcliffe Levisham Station
Pickering Beck Pickering Pickering
Pocklington Beck Pocklington Pocklington
River Derwent Bubwith Bubwith Bridge
River Derwent Buttercrambe Buttercrambe
River Derwent East Ayton West Ayton
River Derwent Low Marishes Low Marishes
River Derwent Malton Malton
River Derwent Old Malton Malton, A64 Road Bridge
River Derwent Stamford Bridge Stamford Bridge
River Dove (North Yorkshire) Kirkby Mills Kirkby Mills
River Riccal Nunnington Nunnington
River Rye East Ness Ness
River Rye Hawnby Broadway Foot
River Rye Wykeham Howe Bridge
River Sea Cut Scalby Mills Sea Cut at Scarborough
River Seven Normanby Normanby
River Seven Sinnington Sinnington
Thornton Beck Thornton le Dale Thornton le Dale