Lonar Crater of Maharashtra, estimated to be 52,000 years old is an alkaline water lake

Lonar Lake, also known as Lonar crater, is a notified National Geo-heritage Monument,saline, soda lake, located at Lonar, 79 km from Buldhana city in Buldhana district, Maharashtra, India. Lonar Lake is an astrobleme created by a meteorite impact during the Pleistocene Epoch. It is one of only four known hyper-velocity impact craters in basaltic rock anywhere on Earth. The other three basaltic impact structures are in southern Brazil. Lonar Lake has a mean diameter of 1.2 kilometres (3,900 ft) and is about 137 metres (449 ft) below the crater rim. The meteor crater rim is about 1.8 kilometres (5,900 ft) in diameter.