Cardiff in making iron and later steel, brought to the sea by packhorse from Merthyr Tydfil. This was first achieved by the construction of a long canal from Merthyr (510 feet above sea-level) to the Taff Estuary at Cardiff. Eventually the Taff Vale Railway replaced the canal barges and massive marshalling yards sprang up as new docks were developed in Cardiff – all prompted by the soaring worldwide demand for coal from the South Wales valleys. At its peak, Cardiff's port area, known as Tiger Bay, became the busiest port in the world and – for some time – the world's
Leckwith, Cardiff Leckwith, Cardiff Leckwith () is an area in the west of Cardiff that includes parts of the communities of Canton and Grangetown. Leckwith includes the area commonly referred to as the Leckwith development. The area shares its name with the village of Leckwith which is situated on the other side of the river Ely in the Vale of Glamorgan. Historically, the parish of Leckwith included lands on both sides of the river; the low-lying marshy lands on the Cardiff side were known as the Leckwith Moors. This area is roughly equivalent to that currently bounded by the river Ely, Leckwith