Accessible natural green spaces were defined using Ordinance Survey MasterMap Topography Layer® combined with Natural Resources Wales recognized natural greenspace typologies.
Diffiniwyd mannau gwyrdd naturiol hygyrch gan ddefnyddio MasterMap Topography Layer® yr Arolwg Ordnans ar y cyd â theipoleg mannau gwyrdd naturiol a gydnabyddir gan Cyfoeth Naturiol Cymru.