The Brahmagiri are a range of mountains in the Western Ghats. The word Brahmagiri literally means mountain peaks covered with fog. The Brahmagiri Hills are situated at the border between Wayanad district of Kerala on the south and Kodagu district of Karnataka in the north. The hills are situated at an altitude of one thousand six hundred and eight meters above mean sea level. On the Kerala side of the Brahmagiri Hills, a temple dedicated to Lord Vishnu had been built. The Brahmagiri Hills are at a distance of eleven kilometres from Thirunelli. The temple is also known as Dakshina Kasi or the Kasi of South. The other old temples and sacred ponds make the hills a popular destination for devotees.

The peak of the Brahmagiri Hills is covered with dense a forest which, in turn, thrives with abundant wildlife. Besides these, coffee and orange plantations can also be found on the hilly slopes. Brahmagiri hills offer a number of sightseeing spots as well. For instance, Pakshipathalam is situated at an elevation of 1740 meters. It is an attraction in the Kerala part of Brahmagiri where there is an ancient cave. The Karnataka side of the cave is known as Munikal cave. The Iruppu Falls of the Lakshmana Tirtha River lies in the Karnataka part of Brahmagiri. It is a major attraction and is a thrilling experience for travellers.