Edappadi has an average elevation of 288 m (945 ft). It is situated at the basin of a hill called 'Soorieya malai' (Mountain of Sun). The mountain does not have any plants due to its rocky and unusual properties. Research done by Periyar University Geologist shows it consists of rare radioactive minerals. Edappadi has a variable terrain. The Sankagiri-Edappadi route via Veerappam Palayam and Sunnambukkuttai is rocky.
