It is believed that tallest naturally formed Shivling in India is located at the Siddheshwar Nath Temple at Lower Subansiri District in Arunachal Pradesh in India
The Tallest Shivling was accidentally found in the Shravan month in 2004. Shravan is a holy month dedicated to Shiva.
Apart from the Shivling, there is also a murti of Goddess Parvati and Ganesha.
The amazing fact is that there is constant flow of water at the base of Shivling, which many believe is Ganga .