Valehouse (or Vale House) Reservoir is a man-made lake in Longdendale in north Derbyshire. It was built between 1865 and 1869 as part of the Longdendale chain which was built to supply water from the River Etherow to the urban areas of Greater Manchester while maintaining a constant flow into the river. The upper reservoirs supply the drinking water while Vale House and Bottoms are compensation reservoirs which guarantee the flow of water to water-powered mills downstream. Given a list of categories: company, educational institution, artist, athlete, office holder, mean of transportation, building, natural place, village, animal, plant, album, film or written work, what category does the paragraph belong to?
A:
Natural Place