Plas Halt is an unstaffed halt on the narrow gauge Ffestiniog Railway in Wales, which was built in 1836 to carry dressed slate from Blaenau Ffestiniog to Porthmadog for export by sea. The halt was established in 1963. Construction took place on the evening of Friday 30 May 1963 and the morning of Saturday 31 May 1963 and it was officially opened later that same day by Mr John Bibby the then owner of Plas Tan-y-Bwlch. The halt was intended to serve a proposed chalet development on the estate. Subsequently, it has been much used in connection with courses at the Snowdonia National Park Environmental Study Centre now based at Plas Tan-y-Bwlch. A stone passenger shelter was built at Plas Halt by volunteers from the Thames Valley Group of the Ffestiniog Railway Society in 1989. The halt is loca