Jumbles Reservoir

{{Use dmy dates|date=April 2022}}

{{Infobox body of water

| name = Jumbles Reservoir

| image = Jumbles Reservoir 1.jpg

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| caption = The Jumbles Reservoir

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|pushpin_map=Greater Manchester

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| location = Greater Manchester, England

| coords = {{coord|53|37|31|N|2|24|9|W|region:GB_type:waterbody|display =inline,title}}

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The Jumbles Reservoir is a heavily modified, high alkalinity, shallow reservoir in North West England.{{cite web|url=http://maps.environment-agency.gov.uk/wiyby/wiybyController?topic=wfd_lakes&ep=query&lang=_e&x=371740.0&y=409560.0&scale=4&layerGroups=8&location=Bolton,%20Gr.%20Manchester&textonly=off&latest=true|title=UK Environment Agency|accessdate=11 February 2010|archive-date=21 July 2011|archive-url=https://web.archive.org/web/20110721025113/http://maps.environment-agency.gov.uk/wiyby/wiybyController?topic=wfd_lakes&ep=query&lang=_e&x=371740.0&y=409560.0&scale=4&layerGroups=8&location=Bolton,%20Gr.%20Manchester&textonly=off&latest=true|url-status=dead}}{{cite web|url=http://maps.google.co.uk/maps?f=q&source=s_q&hl=en&geocode=&q=Jumbles+Reservoir&sll=53.625248,-2.45244&sspn=0.027742,0.077162&g=Dingle+Reservoir&ie=UTF8&hq=&hnear=Jumbles+Reservoir&ll=53.62367,-2.40386&spn=0.027743,0.077162&t=h&z=14|title=Google Earth|accessdate=11 February 2010}} It lies in Jumbles Country Park, in the valley of Bradshaw Brook,{{cite web|url=http://www.bolton.org.uk/jumbles.html|title=bolton.org.uk|accessdate=4 February 2010}} partly in the Metropolitan Borough of Bolton, Greater Manchester, and partly in Blackburn with Darwen, Lancashire. It was opened on 11 March 1971 by Queen Elizabeth II for the then Bolton Corporation Waterworks (since privatisation the reservoir is now owned by United Utilities).{{cite web|url=http://www.unitedutilities.com/Jumbles.htm|title=United Utilities|accessdate=4 February 2010|archive-date=2 January 2010|archive-url=https://web.archive.org/web/20100102111203/http://unitedutilities.com/Jumbles.htm|url-status=dead}}{{cite web|url=http://www.lancashiretelegraph.co.uk/leisure/walks/lake_district/3622778.Jumbles_reservoir_walk/|title=Lancashire Telegraph Archive|accessdate=4 February 2010}} The reservoir's original purpose was to guarantee water for the Croal-Irwell river system and the associated industries.

At the most northernly point of the reservoir is an old disused quarry, (Jumbles Quarry) it is now flooded with water due to the presence of the reservoir therefore making it impossible to tell that it is even there!

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.