The ecoregion covers an area of 9700 km² of the Naga Hills, part of the belt of folded mountains that make up the India-Myanmar border region, The pine forests are found between 1500 and 2500 meters elevation, and occur in three enclaves; the largest straddles the boundary between India's Nagaland state and Myanmar, with two smaller enclaves in the southern portion of India's Mizoram state, near Myanmar border. The pine forests are surrounded at lower elevations by the predominantly broadleaf Mizoram-Manipur-Kachin rain forests.
Wikramanayake, Eric; Eric Dinerstein; Colby Loucks; et al. (2002). Terrestrial Ecoregions of the Indo-Pacific: a Conservation Assessment. Island Press; Washington, DC.