Watford is a town and borough in Hertfordshire, England, 15 mi northwest of Central London, on the banks of the River Colne.
Initially a small market town, the Grand Junction Canal encouraged the construction of paper-making mills, print works, and breweries. While industry has declined in Watford, its location near London and transport links has attracted several companies to site their headquarters in the town. Cassiobury Park is a public park that was once the manor estate of the Earls of Essex.
The town developed next to the River Colne on land belonging to St Albans Abbey. In the 12th century, a charter was granted allowing a market, and the building of St Mary's Church began. The town grew partly due to travellers going to Berkhamsted Castle and the royal palace at Kings Langley.
Wikipedia https://en.wikipedia.org/wiki/Watford
Official Website https://www.watford.gov.uk/
Coordinates 51°39'19.395" N -0°23'44.673" E