Lonar Crater: Geological and Ecological Heritage near Jalna

The Lonar crater in Buldhana district (adjacent to Jalna's northwest) is one of the world's four largest and most well-preserved impact craters, created approximately 50,000 years ago when a meteorite struck the basalt plateau of the Deccan. The 1.8 km diameter crater contains a saline soda lake of unique chemistry that supports specialised microorganisms and extremophile bacteria of interest to astrobiology. The crater rim is ringed by tropical dry deciduous forest with a remarkable microclimate. The Daitya Sudan temple and other historic temples inside the crater predate scientific knowledge of its origin, suggesting millennia of human settlement drawn by the lake's religious significance. Traditional communities have maintained sacred groves (devrai) on the crater rim, preserving old-growth forest. The Lonar lake's unusual chemistry has been studied as an analogue for Martian crater lakes. Jalna serves as the nearest large town for visitors to the Lonar heritage site.