History of Sila Thoranam Tirumala
As per History, Lord Sri Venkateswara came to Tirumala in search of his wife Sri Maha Lakshmi . She He had reverence towards the sage Brigu Maharshi, even though the sage had insulted him by kicking Him on the chest, the place where his wife Sri Mahalakshmi was there. He stood at the Top of Tirumala, which is now called SRIPADAM.
On the way down from Sripadam to Tirumala, there is a place called SILA THORANAM. Here natural rock depicts Lord Vishnu’s Sangu, Sakram, Thiruman and his Abhayakaram
During excavations in the 1980’s on a mound of earth in the jungles 1 km. North of the temple where it was believed that some information lied buried about the Lord’s transformation into rock, a very rare phenomenon of two different sets of rocks connected together in the form of a thin link was found.They are formed naturally very mysterious indeed! This geological arch is a very rare spectacle in the world. This arch (older than the Jurassic age) is 25 feet in length, 10 feet in height.