The Male Mahadeshwara Hills are situated in the northeastern
section of a detached extension of the Western Ghats,
projecting northeastward along the southern edge of the Deccan Plateau. Along
with the Biligiriranga
Hills, this range forms a significant geological link between the Eastern
Ghats and Western Ghats. The region is separated from the Nilgiri Hills by the Moyar
River.
The Male Mahadeshwara Hills are bounded by the Kaveri River to
the north and east, while the Palar River, a tributary of the Kaveri, flows
along the southern boundary. The confluence of these two rivers lies at the
southeastern corner of the Male Mahadeshwara forest, with the Stanley Reservoir
located further downstream.
The hills have an average elevation of approximately 3,000
feet (910 metres). The highest peak in the range is Ponnachi Betta, which rises
to an elevation of 1,514 metres (4,967 feet) above sea level.
Beyond its significance as a pilgrimage centre, the Male
Mahadeshwara Hills encompass vast stretches of forestland rich in sandalwood
and bamboo. The landscape of the hills and valleys is blanketed by diverse
forest types, ranging from evergreen forests in the Ponnachi region to
predominantly dry deciduous forests across much of the area. These forests
support a wide variety of wildlife, including numerous species of animals,
birds, and reptiles, many of which are found in significant numbers. Among
them, elephants stand out as the most prominent and iconic inhabitants of the
region.