Slate clearing bid angers group The site is near the community centre in the village A campaign group has been set up to try to stop a former slate tip from being moved to make way for a future housing development in the Nantlle Valley.Residents at Talysarn near Penygroes in Gwynedd, claim the 3.7 acre site - which they call Hen Domen - is a haven for wildlife including toads and newts.