retain all archaeological and historical features including earth works, standing stones, hill forts, burial mounds, hut circles, sheepfolds, and grouse butts
cadwch bob nodwedd archeolegol a hanesyddol gan gynnwys gwrthgloddiau, meini hirion, bryngaerau, tomenni claddu, cylchoedd cytiau, corlannau a chuddfannau hela grugieir