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 can begin at one of the Thames Head springs.The highest springs of Thames Head are located north of the A433 road, in a meadow called Trewsbury Mead. The springs continue immediately south of the A433.
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Address (Unnamed Road), GL7 6, United Kingdom
Coordinates 51°41'40.223" N -2°1'46.754" E