The Amman Valley Railway Society (Welsh: Rheilffordd Dyffryn Aman) is situated near the former Gwaun Cae Gurwen branch line, that runs alongside the River Amman, some 10 miles (16 km) north of Swansea in west Wales. Its primary focus is to construct Swansea 9 Lines. An eco friendly tram system to the heart of Swansea & the surrounding areas.