Ancient Trees in Riga
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The Lucavsala Linden
Small-leaved Lime (Tilia cordata). roughly 200 years. Free, public island park with walking trails (Rigas Meži recreation area); reachable on foot

The Ēbeļmuiža Oak
Pedunculate Oak (Quercus robur). roughly 300 years. Free, stands in a public park (former manor grounds); no restriction noted

The Kaltiņi Oak
Pedunculate Oak (Quercus robur). roughly 330 years. Free, stands beside a former/current social care centre ('Ezerkrasti') by the lake; publicly reachable, no gate or entry fee noted in sources

The Zasulauks Maple
Norway Maple (Acer platanoides). roughly 140 years. Free, grows beside a historic wooden tenement building in the Kalnciema Quarter (Kalnciema kvartāls), a public heritage and market district; visible from the street

The Kanālmalas Oak
Pedunculate Oak (Quercus robur). possibly around 140 years. Free, stands in Riga's central public canal-park (Kanālmalas apstādījumi), open at all times, no restriction