Sagarmatha Zone
Sagarmāthā Zone took its name from the Nepalese name for Mount Everest, which is located in the very north of the zone within the Sagarmatha National Park (1,148 km²) in the Solu Khumbu district. Sagarmāthā means "the Head in the Great Blue Sky".List of districts of Nepal
Bagmati River
The Bagmati River is considered the source of Nepalese civilization and urbanization. The river has been mentioned as Vaggumuda (वग्गुमुदा) in Vinaya Pitaka and Nandabagga. It has also been mentioned as Bahumati (बाहुमति) in Battha Suttanta of Majjhima Nikaya. An inscription dated  477 describes the river as Bagvati parpradeshe (वाग्वति पारप्रदेशे) and subsequently in Gopalraj Vanshavali.
The Chobar gorge cuts through the Mahabharat Range, also called the Lesser Himalaya. This range is the southern limit of the "middle hills" across Nepal, an important cultural boundary between distinctive Nepali and more Indian cultures and languages, as well as a major geological feature.