Write a review Your name* Your e-mail* (Not for publication) Rating ★★★★★ Excellent ★★★★☆ Very good ★★★☆☆ Average ★★☆☆☆ Poor ★☆☆☆☆ Terrible Your review * * — Required information Monument Gas ← View details Spion Kop, Chapel Street, Penysarn, Gwynedd LL69 9YE, United Kingdom, Pen-y-sarn, England