Occurrence of Attributes in Original Text

The text related to the cultural heritage 'Castles and Town Walls of King Edward in Gwynedd' has mentioned 'Sandstone' in the following places:
Occurrence Sentence Text Source
[123] Harlech is built from local grey-green sandstone, with large, regular blocks used for the towers and irregular material, possibly taken from the ditch, used for the walls.
Conwy Castle hugs a rocky coastal ridge of grey sandstone and limestone, and much of the stone from the castle is largely taken from the ridge itself, probably when the site was first cleared.