where did the river thames start and end
Thames Estuary, North Sea
title: River Thames text: million years ago, in the Thanetian stage of the late Palaeocene epoch. Until around 500,000 years ago, the Thames flowed on its existing course through what is now Oxfordshire, before turning to the north east through Hertfordshire and East Anglia and reaching the North Sea near Ipswich. At this time the river system headwaters lay in the English West Midlands and may, at times, have received drainage from the Berwyn Mountains in North Wales. Brooks and rivers like the River Brent, Colne Brook and Bollo Brook either flowed into the then River Thames or went out to sea on the title: River Thames text: River Thames The River Thames, ( ) known alternatively in parts as the Isis, is a river that flows through southern England including London. At , it is the longest river entirely in England and the second longest in the United Kingdom, after the River Severn. It flows through Oxford (where it is called the Isis), Reading, Henley-on-Thames and Windsor. The lower reaches of the river are called the Tideway, derived from its long tidal reach up to Teddington Lock. It rises at Thames Head in Gloucestershire, and flows into the North Sea via the Thames Estuary. The Thames drains title: River Thames text: this time, the Thames' course did not continue to Doggerland but flowed southwards from the eastern Essex coast where it met the Rhine, the Meuse and the Scheldt flowing from what are now the Netherlands and Belgium. These rivers formed a single river – the Channel River ("Fleuve Manche") – that passed through the Dover Strait and drained into the Atlantic Ocean in the western English Channel. The ice sheet, which stopped around present day Finchley, deposited boulder clay to form Dollis Hill and Hanger Hill. Its torrent of meltwater gushed through the Finchley Gap and south towards the new title: River Thames text: forms one of the principal axes of the city, from the Palace of Westminster to the Tower of London. At this point, it historically formed the southern boundary of the medieval city, with Southwark, on the opposite bank, then being part of Surrey. Beyond central London, the river passes Bermondsey, Wapping, Shadwell, Limehouse, Rotherhithe, Millwall, Deptford, Greenwich, Cubitt Town, Blackwall, New Charlton and Silvertown, before flowing through the Thames Barrier, which protects central London from flooding by storm surges. Below the barrier, the river passes Woolwich, Thamesmead, Dagenham, Erith, Purfleet, Dartford, West Thurrock, Northfleet, Tilbury and Gravesend before entering the title: River Brent text: the goddess Brigantia The River Thames can first be identified as a discrete drainage line as early as 58 million years ago, in the Thanetian stage of the late Palaeocene epoch. Until around half a million years ago, the Thames flowed on its existing course through what is now Oxfordshire, before turning to the north east through Hertfordshire and East Anglia to reach the North Sea near Ipswich. At this time the river system headwaters lay in the English West Midlands and may, at times, have received drainage from the North Wales Berwyn Mountains. The river Brent and its valley's