Title: River Thames
Content:   The usually quoted source of the Thames is at Thames Head (at ). This is about 3/4 mi north of Kemble parish church in southern Gloucestershire, near the town of Cirencester, in the Cotswolds. However, Seven Springs near Cheltenham, where the Churn (which feeds into the Thames near Cricklade) rises, is also sometimes quoted as the Thames' source, as this location is farthest from the mouth, and adds some 14 mi to the river's length. At Seven Springs above the source is a stone with the Latin hexameter inscription "Hic tuus o Tamesine pater septemgeminus fons", which means "Here, O Father Thames, [is] your sevenfold source". The springs at Seven Springs flow throughout the year, while those at Thames 
Title: Thames Head
Content:  The claim that this site is the source of the River Thames is disputed. The Environment Agency, the Ordnance Survey and other authorities have the source of the Thames as Thames Head. Others hold that the true source of the Thames is at Seven Springs, Gloucestershire, some 11 mi farther north, and east of Gloucester. Seven Springs is officially the source of the River Churn, which is a tributary of the Thames that joins at Cricklade. As it is further from the mouth of the Thames than Thames Head, the adoption of Seven Springs as its source would make the Thames the longest river in the UK.
Title: Seven Springs, Gloucestershire
Content:  Seven Springs features in the long-running argument over the true source of the River Thames. Two plaques at the site read "Hic tuus o Tamesine Pater septemgeminus fons" (Latin for "Here, O Father Thames, is your sevenfold spring"). Seven Springs is further from the mouth of the Thames than the medieval preferred source at Thames Head near Kemble. In 2012 Coberley Parish Council posted a notice, on site, that "Seven Springs is certainly one of the sources of the River Thames and is held by many to be the ultimate source." The notice adds that the site is the source of the River Churn, which flows into the Thames at Cricklade, and as its location is furthest from the mouth of the Thames, it adds some 14 miles to the length of the river 
Title: Thames Head
Content:  begin at one of the Thames Head springs. The highest springs of Thames Head are located north of the A433 road (Fosse Way section), in a meadow called Trewsbury Mead. The springs continue immediately south of the A433. The Ordnance Survey identifies Thames Head as the source of the Thames on its maps and the UK's Environment Agency follows their precedent. However, there is also a long-standing alternative view that the real source of the Thames is on a different headstream entirely: at Seven Springs, Gloucestershire, the source of the River Churn, which is officially a tributary of the Thames that joins the Thames at Cricklade and which is longer than the course of the Thames from Thames Head to Cricklade.
Title: River Thame
Content:  The River Thame is a river in Southern England. It is a tributary of the River Thames. The general course of the River Thame is south-westward and it runs from each of the longest of its many sources to the River Thames in about 40 mi. The Thame rises in the English county of Buckinghamshire and discharges in south-east Oxfordshire.
Title: Thames Head
Content:  Thames Head is a group of seasonal springs    that arise near the village of Coates in the Cotswolds, about three miles south-west of the town of Cirencester, in the county of Gloucestershire, England. The spring water comes from the limestone aquifers of the Cotswolds. One or more of these springs are traditionally identified as the source of the River Thames. In actuality, the source of the River Thames does not have a fixed location – rather, it changes according to the level of the groundwater in the limestone. In dry periods, the groundwater level falls, causing the Thames Head springs to dry up and the river to begin lower down in its course. In wet conditions, the groundwaters rise and the river 
Title: River source
Content: The River Thames rises in Gloucestershire. ; The White Nile rises in the Great Lakes region of central Africa. The verb "rise" can be used to express the general region of a river's source, and is often qualified with an adverbial expression of place. For example: The word "source", when applied to lakes rather than rivers or streams, refers to the lake's inflow.
Title: River Tame, Greater Manchester
Content:  Most of the river's catchment lies on the western flank of the Pennines. The named river starts as compensation flow (that is, a guaranteed minimum discharge ) from Readycon Dean Reservoir in the moors above Denshaw. The source is a little further north, just over the county border in West Yorkshire, close to the Pennine Way. The highest point of the catchment is Greater Manchester's highest point at Black Chew Head. The river flows generally south through Delph, Uppermill, Mossley, Stalybridge, Ashton-under-Lyne, Dukinfield, Haughton Green, Denton and Hyde. The Division Bridge (which spans the river at Mossley), marks the meeting point of the traditional boundaries of Lancashire, Yorkshire and 
Title: Thames Head
Content:  Thames Head is a group of seasonal springs which, when flowing, form the headstream of the River Thames, the major river which runs through the South of England and the centre of London. Their location is in fields near the villages of Coates and Kemble, on either side of the A433 road, about three miles south-west of the town of Cirencester, in the Cotswolds, Gloucestershire. The field to the north of the A433, Trewsbury Mead, has the highest-located springs, which tend only to flow during a wet winter. One of these springs is marked with an inscribed stone marker. Below it, the springhead itself is in a hollow that has been lined with stones. Thames Head is 360 ft above sea level, at grid reference ST980994. The actual start of the River Thames changes as the level of groundwater changes. The spring known as Lyd Well, located south of the A433 (grid reference ST989984), is often where the river starts. In 2011, the lowest recorded start of the Thames was just upstream of Ashton Keynes, which is over 6 miles (10km) downstream from Thames Head.
Title: Thames Path
Content:  The Thames Path uses all available riverside rights of way between the traditional source of the river in Trewsbury Mead and Inglesham, but is unable to run alongside the river in several places. The Thames Path starts beside the monument for the traditional river source and follows the water down the hill towards the Fosse Way. In the fields either side of the A433 are some springs; and south of this road, a small water channel can be found and then a small weir, before reaching the A429 bridge near Kemble. On the stretch between Ewen and Somerford Keynes the bourne passes through fields and there 

Question: where is the thames river source?
Answer: Thames Head.