Nagarahole Tiger Reserve is situated in Kodagu and Mysuru districts. The origin of the reserve as a protected area dates back to the reign of the Wodeyar dynasty, the former rulers of the Kingdom of Mysore, when Nagarahole was an exclusive hunting reserve of the kings. It was set up in 1955 as a wildlife sanctuary by Coorg State covering an area of 284.16 Km². Later its area was increased to 643.39 Km². It was upgraded to a national park in 1988, and was brought under the fold of the Project Tiger by declaring it as a Tiger Reserve in 1999.
Nagarahole Tiger Reserve is headed by a Conservator of Forests. The Tiger Reserve has three sub-divisions, namely, Hunsur, Nagarahole and Metikuppe sub-divisions, and consists of eight ranges, namely, Anechowkur, Antarasanthe, DB Kuppe, Kallahalla, Metikuppe, Nagarahole, Hunsur, Veeranahosalli.
Forests of Nagarahole are primarily deciduous. It has excellent moist deciduous forests, including high-quality teak-bearing areas, on the western part of the reserve. In the extreme west, and in sheltered valleys as well as moister localities, the forest tends to be semi-evergreen. As one moves towards the east, the forests turn dry deciduous, degrading into deciduous scrub in areas adjecent to habitations. The wildlife present in the Tiger Reserve includes Tiger, Panther, Wild Dog, Elephant, Bison, Sambar, Spotted Deer, Barking Deer, Sloth Bear, Wild Boar, Common Langur, Bonnet Macaque, Varieties of reptiles and Birds, etc.