Limbu language in the context of Makalu

The Arun River (Nepali: अरुण नदी) (Limbu: ᤕᤢ᤺ᤰᤑᤠ᤺ ᤛᤠᤶᤘᤠ, Yukpha: Saamwaa, in Classical Limbu) is a trans-boundary river that is part of the Koshi or Sapta Koshi river system in Nepal. It originates in the Tibet Autonomous Region of the People's Republic of China where it is called the Phung Chu or Bum-chu.

The Barun River (Nepali: बरुण नदी) (Limbu: ᤆᤢᤰᤆᤢ᤺ᤘᤠ) is a tributary of the Arun River and is part of the Kosi river system in Nepal.

Dharan (Nepali: धरान) (Limbu: ᤎᤠᤖᤠᤴ, Dhaaraan; ᤒᤡᤈᤧᤐᤢᤷ ᤜᤱᤐᤱ ᤐᤱᤕ᤺ᤰ, Beejaepoor Hangpang Pangya:k: in Limbu) is a sub-metropolitan city in Sunsari District of Koshi Province, in eastern Nepal, which was established as a fourth municipality in the Kingdom in 1958. It is the third most populous city in eastern Nepal after Biratnagar and Itahari. The Nepali word "dharan" means a saw pit.

In 1960, a British Gurkha camp was also established near the city. The use of the camp by British Gurkhas finished in the mid-1990s. Dharan has an estimated city population of 173,096 living in 34,834 households as per the 2021 Nepal census. It is one of the cities of the Greater Birat Development Area which incorporates the cities of Biratnagar-Itahari-Gothgau-Biratchowk-Dharan primarily located on Koshi Highway in eastern Nepal, with an estimated total urban agglomerated population of 804,300 people living in 159,332 households. It is the largest city in the Koshi Province by area, at 192.61 square kilometres, and Biratnagar and Itahari are the second- and third-largest cities by area respectively.

Panthar District (Nepali: पान्थर जिल्लाListen) (Limbu: ᤐᤠᤴᤌᤷᤀᤥ, Paantharo in Limbu) is one of 14 districts of Koshi Province in the eastern hilly region of Nepal. It is a Hill district of eastern Nepal. The district covers 1,241 km (479 sq mi) of area. The 2011 census counted 191,817 population. Phidim is the district headquarters.