Triyuga(गाइघाट,त्रियुगा,उदयपुर )is in the Udayapur District Sagarmatha zoneof eastern Nepal. This city is in the famous Udyapur Valley, Gaighat (other name of Triyuga) is the shadow of a historic kingdom of Sen dynasty in Udayapur Ghadhi(Chaudandi) this Inner tarai Valley of central south Nepal has a glorious history with the bright future. Udayapur Ghadi is in the pick of the Hill and similarly Gaighat is in the plane of the Valley , Udayapur valley is the biggest valley in east Nepal, with very nice natural attraction, Triyuga river fall from the heart of the city and the eastern side of valley Kosi River (Nepal’s Biggest river) is falling down , this river is the main attraction of the country because of the beautiful phenomenon , also the KoshiIsland wild life reserve is inside a big Island of Koshi River which is the store of the wild water buffalo (called Arna) in Nepal The reserve is a wetland of international significance. In 1987, it was declared a Ramsar site. It is home to more than 280 bird species including 20 duck species, 2 species of ibises, many storks, egrets and herons. The endangered swamp partridge and Bengal florican are found here. The Koshi Barge is an extremely important resting-place for migratory birds.
The last surviving population of wild buffalo or arna is found here. The reserve is also home to many types of mammals such as hog deer, spotted deer, wild boar and blue bull. The endangered Gharial crocodile and Gangetic dolphin have been recorded in the Koshi River.
The vegetation mainly includes tall khar-pater grasslands with a few patches of khair-sissoo scrub forest and deciduous mixed riverine forest.
During the monsoon, the reserve is flooded with depths ranging from 10 to 300 cm. From season to season the Sapta-Koshi River changes its course.
Transportation and communication
Sagarmatha Highway from Lahan connect Gaighat with the Mahendra highway and all other part of the country, after crossing valley in south Mahendra Highway is not so far. Also this Highway connect Ghaighat and other Town Katari with the Okhaldhunga and in future Khotang Ramechap District of the Mountain. Also an old road to connect Dharan through Inner Tarai is just going to reopen for the easier movement of the Inner Tarai Valleys of Sindhuli and Udyapur of Western Region to Dharan a meager city of Eastern Nepal. This road from Sindhuli come alongside of Ranibas Katari and goes to Chatar to Cross Koshi and Reach Dharan.
Phone, fax, and Internet is available in the town.
Resorts are available near Koshi Island wildlife and in town lodge and some resort with sufficient service available. For the local transport rickshaw and Jeep for the Safari to Koshi Jeeps and Taxi are available
To stay in Kossi Tappu resort are Koshi Tappu Camp, Koshi Camp and Aqua birds unlimited camp.
* [http://www.udayapur.com/tab.html Udayupur Valley / Gaighat information]
* [http://www.kosicamp.com/mainindex.php Koshi Camp]
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