Please note that the content of this book primarily consists of articles available from Wikipedia or other free sources online. Pages: 29. Chapters: Natural Arch, Tirumala hills, Srirangarajapuram, Eparchaean Unconformity, Chitti annavaram, Kalepalli, Rayalacheruvu, Gajulamandyam, Gudimallam, Nangamangalam, Thathaiah Kalva, Kanipakam, Ramakuppam, Chandragiri, Ramasamudram, Pathikonda, Nangamangalam Village, Ekambara kuppam, Muchivolu, Kallur, Chittoor, Bandarlapalle, Aragonda, Setteri, Chalampalli, Kaliambakam, Mahal, Vikruthamala, Yerradoddipalli, Eguvamasapalli, Madibaka, Thiruchanoor, Venkatanarasimharajuvaripeta, Anjimedu, Diguvamagham, Turupupalli, Naravari Palle, Venkata Rajula Kandriga, Damalcheruvu, Thondavada, Chembakur, Paminivandlavooru, Bandivandluru, Palamangalam, Kunama Raju Palem, Mavillapadu, Bommasamudram, Errepalli, Akkarampalle, Beerakuppam, Penubalakala, Samakotavari palle, Chintaparthi, Nennur, Mudipalli, Kalakada, Pulicherla, Mittapalli, Mulakalacheruvu, Gangammagudi, Gudarevu Palli, Siddi Raju Kandriga, Nimmanapalle, Yellam palli, Chinthamakulapalli, Kasavanoor, Kopparavandlapalle, Nerabailu, Paradarami, Samireddy palli, Nallavengana Palli, Muthuvalloor. Excerpt: Natural Arch, Tirumala hills is a distinctive geological wonder located 1 km (0.6 mi) North of the Tirumala hills temple, near the Chakra Teertham in the state of Andhra Pradesh, India. The Arch is also called Silathoranam in local language (Telugu language: "Sila" means 'rock' and "thoranam" means a garland strung over a threshold, connecting two vertical columns or an 'arch' as in this case). The arch measures 8 m (26.2 ft) in width and 3 m (9.8 ft) in height, and is naturally formed in the quartzites of Cuddapah Supergroup of Middle to Upper Proterozoic (1600 to 570 Ma) due to natural erosive forces. The arch is one of the few natural arches or bridges in Asia. But there are many others in other continents, such as the Rainbow Bridge (Arch) and Arches National Park in Utah, US...