Terhathum Districtतेह्रथुम जिल्ला

Terhathum (often spelled Tehrathum, as in the census tables) is the smallest district in Koshi Province at just 679 km², a wedge of hills between roughly 300 m and 3,000 m run from the ridge-top headquarters of Myanglung. With 88,731 people at the 2021 census it is also the province's least populous district, and its six local levels — two municipalities and four rural municipalities — are the fewest in Koshi.

Its natural claim to fame is the Tinjure–Milke–Jaljale (TMJ) ridge, popularly called the rhododendron capital of Nepal: a 285 km² forest belt shared with Sankhuwasabha and Taplejung that holds 28 of the 32 rhododendron species recorded in Nepal (per an IUCN compilation), turning the high ridgelines red and pink each spring. One of the district's two municipalities is even named Laligurans, Nepali for rhododendron — the national flower.

The district sits in the old Limbu heartland — Limbus are 36.4% of the population, followed by Chhetri (19.4%) and Bahun (11.1%) — and its hills are part of the eastern belt known for orthodox tea and traditional dhaka weaving. Literacy is a healthy 81.9%, but the population is falling fast (−1.30% a year, from 101,577 in 2011), the third-steepest decline in the province after Khotang and Bhojpur.

Terhathum (also spelled Tehrathum) is a hill district in the eastern reaches of Nepal, today part of Koshi Province, with its administrative headquarters at Myanglung. The district name is generally explained as a compound of "terha" (thirteen) and "thum" (a traditional administrative grouping of villages), reflecting an older clustering of thirteen thums. The headquarters town's own name, Myanglung, is traced to Limbu words said to mean "cat" (myang) and "stone" (lung), preserving the region's deep Limbu (Kirat) linguistic heritage.

Historically the area formed part of Pallo Kirat, the easternmost of the three Kirat regions within the wider Limbuwan homeland of eastern Nepal. Before the rise of the Shah state, Limbu chiefs governed these hills under their own customary systems, and the territory lay along old trans-Himalayan footpath and trade networks that linked the Nepal hills with Tibet to the north and the plains to the south.

During the unification campaigns of the late eighteenth century, the eastern hills were brought under the rule of the emerging Kingdom of Nepal, the conquest of this region being associated with the Gorkhali expansion of the 1770s-1780s. Following incorporation, Limbu lands were long administered in part through the kipat system, a customary form of communal land tenure that distinguished the social and economic organisation of Limbuwan from much of the rest of Nepal.

In the modern administrative reorganisation of the country, Terhathum became one of Nepal's districts within the former Koshi (Eastern Development) zone, and after the 2015 federal restructuring it was placed in Koshi Province. The district is also widely noted as the birthplace of K. P. Sharma Oli, a multiple-term Prime Minister of Nepal, who was born in 1952 in Iwa village in Terhathum.

Terhathum is a compact, entirely hilly district covering roughly 679 square kilometres in eastern Nepal, lying near the Tamor (Tamur) river system to the north and east. It has no plains (Terai) and no high snow peaks within its own borders; instead its landscape is one of steep mid-hill ridges, terraced slopes, river valleys and forested highlands. Elevations range from around 169 metres in the lowest river valleys to roughly 3,000 metres on the highest ridgelines, so the district packs upper-tropical, subtropical and temperate climate zones into a short horizontal distance.

The terrain is defined by long north-south ridges (danda) separated by deeply incised streams that drain toward the Tamor and Arun river basins. Prominent ridge crests include Tinjure (around 3,060 metres) and Milke Danda (around 2,900 metres) along the district's northern fringe, which form part of the celebrated Tinjure-Milke-Jaljale highland corridor and serve as natural viewpoints toward the eastern Himalaya.

Climate follows altitude closely: the lower valleys are warm and humid, the mid-hills around Myanglung (about 1,500-1,665 metres) enjoy a mild, temperate climate through much of the year, and the upper ridges are cool, mist-prone and can receive snow in winter. The summer monsoon brings heavy rainfall that sustains dense forest cover, while the dry post-monsoon and spring months offer the clearest mountain views and the famous spring rhododendron bloom.

Agriculture is the mainstay of Terhathum's economy, practised mostly on terraced hill slopes. Staple food crops include rice (in the lower, irrigated valleys), maize, millet, wheat and potato, alongside a wide range of vegetables and fruits suited to the district's varied altitudes. Most households combine subsistence farming with raising livestock such as cattle, buffalo, goats and poultry.

Cash cropping is increasingly important, with large cardamom (alaichi) a leading high-value commodity of the eastern hills, complemented by ginger, tea-growing areas, citrus and other horticulture. The chiraito (Swertia chirayita) medicinal herb gathered from the highlands and other non-timber forest products add to rural incomes, while local craft traditions include handwoven cloth such as allo (Himalayan nettle) textiles associated with hill communities.

Tourism has emerged as a growing economic pillar, anchored on the district's promotion as a gateway to the Tinjure-Milke-Jaljale (TMJ) trekking corridor and its reputation as the 'rhododendron capital of Nepal.' Trekkers and domestic visitors transit through hubs such as Basantapur and Myanglung, supporting lodges, teahouses, transport and local guiding, especially during the spring rhododendron season. As with much of hill Nepal, remittances from family members working elsewhere in Nepal and abroad form an important supplement to household economies.

Terhathum is one of the heartlands of Limbu (Kirat) culture in eastern Nepal. According to the 2021 census the district's population was about 88,731, and Limbus form the single largest community at roughly a third, followed by Chhetri, Hill Brahmin (Bahun), Tamang and smaller numbers of Kami, Damai, Gurung, Newar and other groups. This makes the district a notable place to encounter living Limbu traditions, music, dress and customary institutions.

Linguistically the district reflects this diversity: Nepali is the most widely spoken first language, while the Limbu language is spoken by a large share of residents, keeping the Kirat tongue strongly alive. In religion, Hinduism is followed by about half the population, the indigenous Kirat Mundhum (Kirat religion) by around a third, with Buddhism and a small Christian minority also present, giving the district a layered religious landscape.

Festivals and cultural life blend Kirat and Hindu traditions. Limbu communities observe customary rites and dances such as the Chyabrung drum dance and seasonal celebrations, while widely observed national festivals like Dashain, Tihar and the Kirat new-year and harvest observances are marked across the hills. Weekly markets (haat bazaars), such as the Friday market that serves as a gateway to Panchakanya Pokhari, remain central to rural social and economic life.