What is River Calder?
The '''River Calder''' is a river in [[West Yorkshire]]. It starts above [[Todmorden]], and drains an area of 369 square miles (957 km<sup>2</sup>). It joins the [[River Aire]] near [[Castleford]] Only a few bits of the river can be used by boats but they are connected by the [[Calder and Hebble Navigation]], a popular leisure waterway which is part of the connected inland [[waterway]] network of England and Wales. Many [[wool]]<nowiki/>en mills were built along its banks, particularly at [[Dewsbury]] and [[Wakefield]], but also in the smaller towns of [[Brighouse]], [[Hebden Bridge]], [[Sowerby Bridge]] and [[Todmorden]]. It used to have [[salmon]], but they were killed by [[pollution]] in the mid 19th century. In 2008 they were seen again.<ref>{{Cite web|title=Return of Salmon to the Aire and Calder|url=http://www.wildyorkshire.co.uk/naturediary/docs/2008/1/29.htm|access-date=2023-04-09|website=www.wildyorkshire.co.uk}}</ref> At Wakefield's there is a nine-arched bridge, 320 feet (98 m) long, built in sandstone between 1342 and 1356. == References == {{reflist}} [[Category:Rivers of Yorkshire|Calder]] [[Category:Geography of West Yorkshire]]