Makalu Barun National Park is a national park in the Himalayas of Nepal that was established in 1992 as eastern extension of Sagarmatha National Park. It is the world's only protected area with an elevation gain of more than enclosing tropical forest as well as snow-capped peaks. It covers an area of in the Solukhumbu and Sankhuwasabha districts, and is surrounded by a bufferzone to the south and southeast with an area of .