The ruined remains of Llys Euryn sit upon a wooded shoulder of Bryn Euryn — a limestone hill on the outskirts of Rhos-on-Sea (Welsh: Llandrillo-yn-Rhos) in the county of Conwy, north Wales. Three sides of the building remain, with the remains of interior walls, a complete fireplace and chimney stack rising to around 50 feet, two other fireplaces and windows.