Rivers similar to or like River Calder, West Yorkshire

Metropolitan and ceremonial county in England. Inland and, in relative terms, upland county having eastward-draining valleys while taking in the moors of the Pennines. Wikipedia

List of settlements in West Yorkshire by population based on the results of the 2011 census. The next United Kingdom census will take place in 2021. Wikipedia

One of nine official regions of England at the first level of Nomenclature of Territorial Units for Statistics for statistical purposes. It comprises most of Yorkshire (the administrative areas of South Yorkshire, West Yorkshire, East Riding of Yorkshire, Hull, North Yorkshire and the City of York), as well as North Lincolnshire and North East Lincolnshire. Wikipedia

List of the busiest railway stations in West Yorkshire List of busiest railway stations in North Yorkshire Wikipedia

Historic county of Northern England and the largest in the United Kingdom. Because of its great size in comparison to other English counties, functions have been undertaken over time by its subdivisions, which have also been subject to periodic reform. Wikipedia

Subnational entity, forming the lowest unit of local government in England. There are 97 civil parishes in the ceremonial county of West Yorkshire, most of the county being unparished. Wikipedia