Aldenham Reservoir
Elstree and Borehamwood, United Kingdom
Aldenham Reservoir is situated in the parish of Elstree and Borehamwood in Hertfordshire, England, about one mile (1.6 km) to the west of the village of Elstree. It is the source of the stream, Tykes Water, that runs north through Radlett.
Reservoir data from Wikidata (CC0). Summary from Wikipedia (CC BY-SA).