Llyfryn dwyieithog am hanes Pontcysyllte yng ngogledd Cymru, a'i statws fel Safle Treftadaeth Byd. Ers dros ddwy ganrif, cafodd ymwelwyr eu syfrdanu gan ogoniant creadigaeth Thomas Telford, pont a ddisgrifiwyd fel nant yn yr awyr, yn croesi 37 metr uwchben afon Dyfrdwy.
A bilingual booklet about the Pontcysyllte Aqueduct in north Wales, a World Heritage Site. For over two centuries, visitors have been amazed at the stupendous feat of engineering which made Thomas Telford's vision a reality. Described as a river in the sky, the acqeduct crosses the Dee valley at a height of 37 metres.
