Penmaenmawr granite quarry is located on the north coast of Wales between Conwy and Bangor on the hillside close to the towns of Penmaenmawr to the east and Llanfairfechan to the west just off the main A55 trunk road. The offices and stock piles are at the bottom while the mineral extraction area is on top of the hill.
There is a long history of quarrying at Penmaenmawr and much evidence of previous working areas. It once supplied granite setts for road paving all over the world via a jetty into Conwy Bay but now produces crushed stone for local markets. There are on-site plants producing ready-mixed concrete and asphalt.
The lower sections of the site are set within variously aged woodland habitat, while towards the top of the hill there is heathland and acid grassland. The northern slopes of the active quarry have areas of previous workings and tips and slopes steeply down to the coast and the A55. Many of the older workings and tips have naturally re-vegetated and provide the locus for a distinct flora. Areas of scrub provide additional habitat. The site has choughs which use the old sett makers hut to breed in. They are monitored by the RSPB.
The quarry has planning permission to 2042 and restoration on any scale is several years away. However, restoration of tips takes place at intervals and Tip 1 is scheduled for restoration in 2013.