Question: Longden End Brook is a water course in what metropolitcan county in northwest England?
Context: Bullcroft Colliery was a coal mine situated by the village of Carcroft north of Doncaster.  The Bullcroft Colliery Company was formed in April 1908 and sinking of the shafts commenced immediately.  In January 1909, at a depth of 100 ft , a water course yielding over 1,000 USgal per minute was struck, it was capped back and sinking continued but only a month later, at 180 ft , another water course, big enough to be described as a "subterranean river", was struck - too much for the steam operated pumps to cope with.  Electric pumps were brought in to cope with the flow but even with a capability of 6,250 USgal per minute they couldn't cope and sinking was stopped so the full situation could be assessed. Greater Manchester is a metropolitan county in North West England, with a population of 2.8 million.  It encompasses one of the largest metropolitan areas in the United Kingdom and comprises ten metropolitan boroughs: Bolton, Bury, Oldham, Rochdale, Stockport, Tameside, Trafford, Wigan, and the cities of Manchester and Salford.  Greater Manchester was created on 1 April 1974 as a result of the Local Government Act 1972; and designated a City Region on 1 April 2011. The Tees Barrage International White Water Course, originally the Teesside White Water Course, is an artificial whitewater course on the north bank of the River Tees, in North East England. The Rakewood Viaduct carries the M62 motorway over Rakewood Valley and Longden End Brook between junctions 21 and 22 at Littleborough in Greater Manchester, England. Black Brook in Lancashire has its source at Great Hill in the West Pennine Moors.  The water is acidic due to a high level of peat in the uplands near to Round Loaf, giving the brook its brown colour.  The young river was known as Warth Brook in olden Heapey.  A feeder stream also known as Black Brook joins near Kittiwake Road - this short and weak water course commences at Eagle Tower.  The jointed brook feeds Anglezarke Reservoir, and joins the River Yarrow in lowland Chorley at Yarrow Bridge.  The entire course of Black Brook and the River Yarrow fall within Chorley and its villages. Brearley Brook is a watercourse in Greater Manchester and a tributary of Hollingworth Brook.  The original source was on Low House Moor but this has been diverted under the M62 Motorway to join Longden End Brook.  The brook now originates at Syke, and follows the original course. Hollingworth Brook is a water course in Greater Manchester which originates at Hollingworth Lake and flows through the Ealees Valley where it merges with Shore Lane Brook to form Ealees Brook. Claise Brook is a stream which empties into Claisebrook Cove before running into the Swan River in Perth, Western Australia.  The area surrounding the stream is on the outskirts of the Perth CBD and is part of the suburb of East Perth.  Claise Brook was once an important water course from which the numerous interconnected fresh water lakes north of Perth emptied into during the wet season before entering the Swan River. Longden End Brook is a watercourse in Greater Manchester.  It rises near Windy Hill, and flows down Rakewood Valley and underneath the M62 motorway at Rakewood Viaduct, before arriving at Hollingworth Lake, where it is the main feeder stream. Lewsey Brook is a minor tributary of the River Lea.  Lewsey Brook is a temporal water course, supplied by surface water from farmland and the nearby Lewsey housing estate that enters the channel through a culvert.  During periods of heavy rain, water floods areas of the nearby Lewsey Park.
Answer: Greater Manchester