The River Calder is a major tributary of the River Ribble in Lancashire, England, and is around 20 miles (32 km) in length.
The River Calder at Altham
The source of the Calder in Cliviger Gorge.
The upper fish pond at Cliviger.
Todmorden Road, Burnley
The River Ribble runs through North Yorkshire and Lancashire in Northern England. It starts close to the Ribblehead Viaduct in North Yorkshire, and is one of the few that start in the Yorkshire Dales and flow westwards towards the Irish Sea.
River Ribble at Preston
Brungerley Weir near Waddow Hall.
Stainforth Force
Tidal bore on the Ribble, between the River Douglas and Preston