Widnes is an industrial town on the northern bank of the River Mersey, where the estuary narrows to form the Runcorn Gap. Historically in Lancashire, it became part of Cheshire in 1974, within the borough of Halton. It had a population of a little over 60,000 in 2011.
Before the Industrial Revolution, Widnes consisted of a small number of separate settlements on predominantly marsh and moorland. In 1847, the first chemical factory was established, and the town rapidly became a major centre of the chemical industry using immigrant workers from Ireland, Poland, Lithuania and Wales. The town was described in 1888 as "the dirtiest, ugliest and most depressing town in England". Although there has been a degree of diversification of the town's industries, Widnes remains a major manufacturer of chemicals.
Spike Island (pictured), where the disused Sankey Canal terminates, has been reclaimed as a recreational area. The nearby Catalyst Science Discovery Centre is the world's first museum dedicated to the chemical industry.