National Geological Monuments are geographical areas of national importance and heritage, as notified by the Government of India's Geological Survey of India (GSI), for their maintenance, protection, promotion and enhancement of geotourism.
Natural stone arch in Tirumala.
Image: Erramatti Dibbalu (Red Sand Hills) in Visakhapatnam 03
Image: Laterite formation on gneiss. C 009
The National Fossil Wood Park, Tiruvakkarai is a notified National Geo-heritage Monument located in the Villupuram District in the Indian state of Tamil Nadu and is maintained by the Geological Survey of India. The park was established in 1940 and is located 1 km east of Thiruvakkarai village on the road between Tindivanam and Pondicherry.
20 million year old wood fossil from the Mio-Pliocene age preserved in Cuddalore sandstone.
Fossilised wood of Mesembrioxylon schmidianum (gymnosperm) and Peuce schmidianum (angiosperm).