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| | Calder Future - River Calder facts and figures (Site not responding. Last check: 2007-07-20) |
 | | The river Calder rises in the Southern Pennines, on Heald Moor above Todmorden, West Yorkshire, UK and joins the Aire at Castleford, 87 km or 56 miles from its source. |
 | | With the onset of industrialisation in the early 19th century, and rapid population growth, the river became increasing polluted. |
 | | The UK Rivers Network is a a new environmental organisation which campaigns on river issues throughout England, Wales, Scotland, Ireland, and Northern Ireland. |
| www.calderfuture.org.uk /calderfacts/index.htm (617 words) |
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