出典:Wikipedia
出典:『Wikipedia』 (2011/04/11 23:14 UTC 版)
Thames Head, near Cirencester, England, is traditionally identified as the source of the River Thames. However, this claim is disputed. The Environment Agency, the Ordnance Survey and other authorities have the source of the Thames as the nearby Trewsbury Mead. Others hold that the true source of the Thames is at Seven Springs, some eleven miles further north, and east of Gloucester. Officially, however, Seven Springs is the source of the River Churn, a tributary of the Thames that joins at Cricklade. Some would say that this tributary, by its distance, in rising further than Trewsbury Mead, would therefore result in the Seven Springs being the ultimate source of the Thames.