The Colne Brook is a river in England that is a

distributary A distributary, or a distributary channel, is a stream that branches off and flows away from a main stream channel. Distributaries are a common feature of river deltas. The phenomenon is known as river bifurcation. The opposite of a distributar ...

of the River Colne which runs from Uxbridge Moor, there forming the western border of Greater London, to the

River Thames The River Thames ( ), known alternatively in parts as the The Isis, River Isis, is a river that flows through southern England including London. At , it is the longest river entirely in England and the Longest rivers of the United Kingdom, se ...

just below

Bell Weir Lock Bell Weir Lock is a lock on the River Thames in England by the right bank, Runnymede which is a water meadow associated with Egham of importance for the constitutional Magna Carta. It is upstream of the terrace of a hotel and the a bridge d ...

Hythe End Wraysbury is a village and civil parish in the Royal Borough of Windsor and Maidenhead in England. It is under the western approach path of London Heathrow airport. It is located on the east bank of the River Thames, roughly midway between Winds ...

Wraysbury Wraysbury is a village and civil parish in the Royal Borough of Windsor and Maidenhead in England. It is under the western approach path of London Heathrow airport. It is located on the east bank of the River Thames, roughly midway between Winds ...

Berkshire Berkshire ( ; in the 17th century sometimes spelt phonetically as Barkeshire; abbreviated Berks.) is a historic county in South East England. One of the home counties, Berkshire was recognised by Queen Elizabeth II as the Royal County of Ber ...

Course

On leaving the Colne at

Uxbridge Uxbridge () is a suburban town in west London and the administrative headquarters of the London Borough of Hillingdon. Situated west-northwest of Charing Cross, it is one of the major metropolitan centres identified in the London Plan. Uxb ...

Moor in the Colne Valley regional park, the Colne Brook flows close by to its west until

West Drayton West Drayton is a suburban town in the London Borough of Hillingdon. It was an ancient parish in the county of Middlesex and from 1929 was part of the Yiewsley and West Drayton Urban District, which became part of Greater London in 1965. Th ...

then passes under the

M25 motorway The M25 or London Orbital Motorway is a major road encircling most of Greater London. The motorway is one of the most important roads in the UK and one of the busiest. Margaret Thatcher opened the final section in 1986, making the M25 the lon ...

at the M4 "

Thorney interchange The Thorney Interchange is a large motorway intersection in the UK, between the M4 and M25. It is one of the busiest motorway interchanges in the UK. It is situated directly on the edge of Buckinghamshire, Greater London (London Borough of Hillin ...

", enters

and flows through the village of

Colnbrook Colnbrook is a village in the Slough district in Berkshire, England. It lies within the historic boundaries of Buckinghamshire, and straddles two distributaries of the Colne, the Colne Brook and Wraysbury River. These two streams have their co ...

. South of there it receives some water from the Poyle Channel, after which that becomes the

Wraysbury River The Wraysbury River is an anabranch of the River Colne to the west of London. Course The river leaves the Colne at West Drayton and runs under the M4 motorway then close to Longford when it passes under the M25 motorway. A branch then feeds t ...

watering the west of Staines Moor. Then the Brook runs between Horton's centre and another residential part of Horton on Coppermill Road adjoining

Wraysbury Reservoir Wraysbury Reservoir is a water supply reservoir for London, just west of the M25 near the village of Wraysbury, and directly under the western approach path of Heathrow Airport. The reservoir was begun in 1967 and completed by W. & C. French in ...

. Colne Brook has its end stage in the easternmost parish of the

Royal Borough of Windsor and Maidenhead The Royal Borough of Windsor and Maidenhead is a Royal Borough of Berkshire, in South East England. It is named after both the towns of Maidenhead and Windsor, the borough also covers the nearby towns of Ascot and Eton. It is home to Wind ...

. It passes

Wraysbury railway station Wraysbury is a village and civil parish in the Royal Borough of Windsor and Maidenhead in England. It is under the western approach path of London Heathrow airport. It is located on the east bank of the River Thames, roughly midway between ...

then adjoins gravel-extraction-made lakes of

, a

Site of Special Scientific Interest A Site of Special Scientific Interest (SSSI) in Great Britain or an Area of Special Scientific Interest (ASSI) in the Isle of Man and Northern Ireland is a conservation designation denoting a protected area in the United Kingdom and Isle ...

, before running into the River Thames: between the

M25 Runnymede Bridge Runnymede Bridge is a motorway, A-road, pedestrian, and cycle bridge, built in the 1960s and 1980s and expanded in the 2000s, carrying the M25 and A30 across the River Thames near the uppermost end of the Staines upon Thames and Egham reach of ...

and

upstream.

Ordnance survey Ordnance Survey (OS) is the national mapping agency for Great Britain. The agency's name indicates its original military purpose (see ordnance and surveying), which was to map Scotland in the wake of the Jacobite rising of 1745. There was a ...

website

Notes and references

;Notes ;References {{DEFAULTSORT:Colne Brook 1ColneBrook Rivers of Berkshire Rivers of Buckinghamshire

Course

See also

Notes and references