River Calder

The River Calder is a major tributary of the River Ribble in Lancashire, England and is around 20 miles in length.
Starting in Cliviger, its source is very close to that of the West Yorkshire river with the same name, and that of the River Irwell. It flows northwest through the Cliviger Gorge supplying two fish ponds near Pot Oven Farm, before collecting Green Clough as it passes the Holme and Black Clough near St John's Church at Holme Chapel. As the Valley widens, the Calder is met by Easden Clough near Southward Bottom and continues to Walk Mill. At the Cliviger Bridge it passes under A646 Burnley Road and it collects Dick Clough near Barcroft Hall before entering Towneley Park and being joined by Everage Clough.

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