The Sagarmāthā National Park (sagaramāthā rāṣṭriya nikuñja) is a protected area in the Himalayas of eastern Nepal that is dominated by Mount Everest. It encompasses an area of 1,148 km2 (443 sq mi) in the Solukhumbu District and ranges in elevation from 2,845 to 8,848 m (9,334 to 29,029 ft) at the summit of Mount Everest. In the north, it shares the international border with the Qomolangma National Nature Preserve of Tibet Autonomous Region and extends to the Dudh Kosi river in the south. Adjacent to the east is the Makalu Barun National Park. Sagarmāthā is a Nepali word derived from सगर् sagar meaning "sky" and माथा māthā meaning "head". The protected area has been identified as an Important Bird Area by BirdLife International and is included in the Sacred Himalayan Landscape.