Jawadhu Hills

The Jawadhu Hills, also spelled as Javadhu or Jawadhi Hills, form an extension of the Eastern Ghats in northern Tamil Nadu. These scenic hills spread across parts of the Vellore and Thiruvannamalai districts and lie in the southeastern region of India. Notably, the hills act as a natural boundary between Vellore district to the northwest and Tiruvannamalai district to the southeast. The Jawadhu Hills stretch roughly 50 miles (80 kilometres) in width and about 20 miles (32 kilometres) in length. The Cheyyar and Agaram rivers, both tributaries of the Palar River, cut through this region. Made primarily of bluish-grey granite, the hill peaks generally rise to elevations between 3,600 and 3,800 feet (1,100 to 1,150 metres).

Flora of Jawadhu Hills

The Jawadhu Hills are largely covered with deciduous forests that support a rich variety of plant life. These forests contain tree species such as Sal, Teak, Terminalia, and several other native varieties. In addition to dense forests, the region features wide grasslands that nurture different grass species and seasonal wildflowers. At higher altitudes, shola forests appear, adding to the ecological significance of the hills. These unique forest patches support endemic plant species and enhance biodiversity. Orchids, ferns, and rare medicinal herbs thrive in these shola regions, making the Jawadhu Hills botanically important.

Fauna of Jawadhu Hills

The Jawadhu Hills support diverse wildlife, including several mammal species. Predators such as leopards and Indian foxes roam the forests, while herbivores like spotted deer and Indian bison (gaur) graze in the open areas. Smaller mammals such as jungle cats and Indian pangolins also inhabit this region. Bird enthusiasts find the hills especially rewarding due to the wide range of bird species. Indian paradise flycatchers, hornbills, Indian grey hornbills, and various birds of prey are commonly sighted. Additionally, streams and water bodies within the hills support amphibians such as frogs and toads.

Trekking Trails in Jawadhu Hills

• Kolakarai Trek: This popular trekking route passes through dense forest cover and allows trekkers to experience the region’s rich flora and fauna. Although the trail can be demanding in certain sections, it rewards hikers with breathtaking views.
• Jamunamarathur Trek: This trekking route winds through grasslands and forested areas. Along the way, trekkers can enjoy birdwatching and may even encounter wildlife in its natural habitat.
• Beemanmadavu Waterfalls Trek: This trek combines forest trekking with the beauty of cascading waterfalls. The trail leads to the Beemanmadavu Waterfalls, where visitors can relax and enjoy the peaceful surroundings.

Kavalur Observatory

The Vainu Bappu Observatory, widely known as the Kavalur Observatory, is located near Kavalur village in the Jawadhu Hills. This facility stands among India’s leading astronomical research centers and has contributed significantly to the fields of astronomy and astrophysics through observations and discoveries.

How to reach Javvadu Hills:

• By Air: The nearest major airport to the Javadi Hills is Chennai International Airport, which is well-connected to major cities in India and some international destinations.
• By Rail: The closest railway station is POLUR, located approximately 40 kilometers between Tiruvannamalai and Vellore.
• By Road: The nearest bus stop is POLUR, which is approximately 40 kilometers away from Tiruvannamalai. To reach the Javadu Hills from POLUR, it’s another 40 kilometers by road.