Match: Q16996931 + relation/4205332

Wikidata: Lonsdale Road Reservoir (Q16996931)
OSM: Leg O'Mutton Nature Reserve (relation 4205332)
matcher place: London (relation 65606), London Borough of Richmond upon Thames (relation 151795)
distance between Wikidata coordinates and OSM location: 24 metres
Wikimedia Commons
English Wikipedia categories: Barnes, London, Local nature reserves in Greater London, Nature reserves in the London Borough of Richmond upon Thames
Tags from Wikidata and Wikipedia: landuse=reservoir, leisure=nature_reserve, man_made=storage_tank, natural=water, subject, water=lake, water=reservoir

Wikidata location: 51.4824, -0.2473 view on OSM

OSM tag name=Leg O'Mutton Nature Reserve matches Leg o' Mutton Reservoir in these Wikidata fields:

Local nature reserves in Greater London	leisure=nature_reserve
Nature reserves in the London Borough of Richmond upon Thames	leisure=nature_reserve