Pambadum Shola National Park is located on the eastern portion of the High Ranges of Southern Western Ghats of Kerala. It is situated between 10o 7′ and 10o10′ N Latitudes and 77o14′ and 77o17′ 30″ E Longitudes, falls in the Vattavada Panchayat of Devikulam Taluk, Idukki District. This National Park lies in between the Kanan Devan Hills and the Palani Hills of Tamil Nadu Originally notified as Pambadum Shola Reserve No. 55 in 1901, it was declared as National Park in December 2003 as per Notification no. 12875/Fe/2003/F&WLD dated 14/12/2003 of Kerala Government (Annexure 1) due to its unique ecological and geographical significance. The vegetation consists mostly of southern subtropical hill forests with shola-grassland system at the higher altitudes. The Shola National Park is 11.753 Km2 in extent (as per SOI toposheets) even though the notified area is only 131.80 Ha.

In Muvattupuzha part of Malayattoor Working Plan for the period 1951-52 to 1966-67 by Sri. T.P. Viswanathan, it is stated that though the area as per notification is 320 acres the area indicated on the concerned Map exceeds 2600 acres and that maintained on the ground roughly corresponds to the area indicated on the Map (page 105). It was prescribed in Page 72 of working plan to take early steps to survey and notify the Shola Reserve.

The extent within the notified boundaries has also been checked and calculated by the GIS unit working under the Chief Conservator of Forests (FMIS). As per the findings of GIS unit extent comes to 11.6859 Sq. km.