tributary
A tributary, or affluent, is a stream or river that flows into a larger stream or main stem (or parent) river or a lake. A tributary does not flow directly into a sea or ocean. Tributaries and the main stem river drain the surrounding drai ...
of the
River Mersey
The River Mersey () is in North West England. Its name derives from Old English and means "boundary river", possibly referring to its having been a border between the ancient kingdoms of Mercia and Northumbria. For centuries it has formed par ...
in the north-west of
England
England is a country that is part of the United Kingdom. It shares land borders with Wales to its west and Scotland to its north. The Irish Sea lies northwest and the Celtic Sea to the southwest. It is separated from continental Europe ...
.
It rises in
Macclesfield Forest
Macclesfield Forest is an area of woodland, predominantly conifer plantation, located around south east of Macclesfield in the civil parish of Macclesfield Forest and Wildboarclough, in Cheshire, England.
The existing woodland is the last s ...
at the western end of the
Peak District
The Peak District is an Highland, upland area in England at the southern end of the Pennines. Mostly in Derbyshire, it extends into Cheshire, Greater Manchester, Staffordshire, West Yorkshire and South Yorkshire. It includes the Dark Peak, whe ...
, and can be seen in spring form, from the
Buxton
Buxton is a spa town in the Borough of High Peak, Derbyshire, England. It is England's highest market town, sited at some above sea level.The Carrs Park in
Wilmslow
Wilmslow ( ) is a market town and civil parish in the unitary authority of Cheshire East in Cheshire, England, south of Manchester city centre. The population was 24,497 at the 2011 Census.
History
Toponymy
Wilmslow derives its name from Old ...
where it has a
confluence
In geography, a confluence (also: ''conflux'') occurs where two or more flowing bodies of water join to form a single channel. A confluence can occur in several configurations: at the point where a tributary joins a larger river (main stem); o ...
with the
River Dean
The River Dean rises at Longclough in Macclesfield Forest on the western edge of the Peak District foothills above the village of Rainow in north east Cheshire, England.
Together with a number of tributary streams it is impounded by the dam at ...
, near to Styal Prison. For the following it defines the southwestern portion of the border between
Greater Manchester
Greater Manchester is a metropolitan county and combined authority area in North West England, with a population of 2.8 million; comprising ten metropolitan boroughs: Manchester, Salford, Bolton, Bury, Oldham, Rochdale, Stockport, Tam ...
and
Cheshire
Cheshire ( ) is a ceremonial and historic county in North West England, bordered by Wales to the west, Merseyside and Greater Manchester to the north, Derbyshire to the east, and Staffordshire and Shropshire to the south. Cheshire's county tow ...
before merging with the
River Mersey
The River Mersey () is in North West England. Its name derives from Old English and means "boundary river", possibly referring to its having been a border between the ancient kingdoms of Mercia and Northumbria. For centuries it has formed par ...
north of Lymm. It flows through the Styal country park and was used in the cotton calico factory there,
Quarry Bank Mill
Quarry Bank Mill (also known as Styal Mill) in Styal, Cheshire, England, is one of the best preserved textile factories of the Industrial Revolution. Built in 1784, the cotton mill is recorded in the National Heritage List for England as a ...
, as a source of power. Near to the Quarry Bank Mill site there is a natural
weir
A weir or low head dam is a barrier across the width of a river that alters the flow characteristics of water and usually results in a change in the height of the river level. Weirs are also used to control the flow of water for outlets of l ...
. The Bollin is
culvert
A culvert is a structure that channels water past an obstacle or to a subterranean waterway. Typically embedded so as to be surrounded by soil, a culvert may be made from a pipe, reinforced concrete or other material. In the United Kingdo ...
ed underneath the southern runway of
Manchester Airport
Manchester Airport is an international airport in Ringway, Manchester, England, south-west of Manchester city centre. In 2019, it was the third busiest airport in the United Kingdom in terms of passenger numbers and the busiest of those ...
.
The town of
Macclesfield
Macclesfield is a market town and civil parish in the unitary authority of Cheshire East in Cheshire, England. It is located on the River Bollin in the east of the county, on the edge of the Cheshire Plain, with Macclesfield Forest to its eas ...
used to dispose all its waste and sewage into the Bollin. The profusion of human sewage in the Bollin was still common in 1850.