where is thames valley

The Thames Valley is a region in South East England that stretches along the River Thames from west of London toward Oxford. It includes parts of Berkshire, Buckinghamshire, and Oxfordshire counties and is known for its scenic countryside, historical sites, and economic hubs, particularly along the M4 corridor. The area is a notable technology center centered around towns like Reading, Oxford, Slough, and Swindon. It is also a popular tourist destination with attractions like Windsor Castle, Oxford University, and various beautiful parks and forests. The Thames Valley serves as a major western approach to London and forms a vital part of the capital's water supply and flood defense. The region roughly extends from the Thames source in the west near Cirencester to the M25 motorway in the east, covering about 15 miles on either side of the river.