The Geological Survey of India (GSI) has proposed declaring the ‘Brahmani Natural Arch’ in Odisha as a Geo Heritage Site.
It is situated in Kanika range of Sundargarh forest division of Odisha.
If it declared so, it will be the biggest natural arch of the country to have the Geo Heritage tag.
The natural arch is composed of ferruginous sandstone from the Upper Kamthi Formation.
It dates back to the lower to middle Jurassic age, approximately 184 to 160 million years old.
India currently has two other natural arches, located at Tirumala hills in Tirupati and Andaman and Nicobar, but both are smaller than the one in Sundargarh.