Jumbles Reservoir Claimed

Jumbles Reservoir is a heavily modified, high alkalinity, shallow reservoir in Jumbles Country Park, in the valley of Bradshaw Brook, partly in Bolton, and partly in Blackburn with Darwen. The reservoir was opened on 11 March 1971 by Her Majesty, Queen Elizabeth II.

The reservoir's original purpose was to guarantee water for the Croal-Irwell river system and the associated industries.  The name Jumbles appeared during the 19th century, it is a variation of dumbles; a northern term for a ravine like valley with wooded sides down which tumbles a fast flowing stream.

This reservoir is also fed from the Wayoh and the Turton and Entwistle reservoirs