Lynch Brook also known as the River Lynch

River Lynch

The River Lynch also known as the Lynch Brook is a minor tributary of the River Lea in Hoddesdon, Hertfordshire, England.-History:Historically, the River Lynch was named after the flat terraces, known as a lynch in Old English, that were formed when cultivating the steep slopes of a river valley,...

 is a tributary of the River Lea in Hertfordshire

Hertfordshire

Hertfordshire is a ceremonial and non-metropolitan county in the East region of England. The county town is Hertford.The county is one of the Home Counties and lies inland, bordered by Greater London , Buckinghamshire , Bedfordshire , Cambridgeshire and...

, England

England

England is a country that is part of the United Kingdom. It shares land borders with Scotland to the north and Wales to the west; the Irish Sea is to the north west, the Celtic Sea to the south west, with the North Sea to the east and the English Channel to the south separating it from continental...

. Beginning at Lynch Mill Pond, by Conduit Lane (East), Hoddesdon

Hoddesdon

Hoddesdon is a town in the English county of Hertfordshire, situated in the Lea Valley. The town grew up as a coaching stop on the route between Cambridge and London. It is located southeast of Hertford, north of Waltham Cross and southwest of Bishop's Stortford. At its height during the 18th...

, the stream is joined by Woollens Brook

Woollens Brook

Woollens Brook, a minor tributary of the River Lea, rises close to Ermine Street, south of Hertford Heath and flows through Box Wood in Hertfordshire. The stream flows under both the A10 and the Dinant Link Road roundabout with Amwell Street...

 and passes under the Lea Valley Lines

Lea Valley Lines

The Lea Valley Lines are three commuter lines and two branches in North East London, so named because they run along the valley of the River Lea...

. The stream then winds in an easterly direction towards the former Lee Valley Caravan Park at Dobbs Weir

Dobbs Weir

Dobbs Weir is a both a weir near and an area of Hoddesdon, Hertfordshire in England on the River Lea. It is well known for angling, outdoor beauty and watersports. It is overlooked by the Fish and Eels pub.-Angling:...

 before turning south, emptying into the Lea near to Dobbs Weir Lock

Dobbs Weir Lock

Dobbs Weir Lock is a lock on the River Lee Navigation near Hoddesdon.- Location :The lock is south of the nearby Dobbs Weir, and stands close to the confluence of the Lynch Brook and the Old River Lea...

.
The pond and the stream, where a water mill once operated, are reported earlier in 1569 being described as an ancient pond known locally as 'Le Lince.'