Tamenglong District is bounded by Senapati District to the East, North Cashar Hills District of Assam to the West, Peren District Of Nagaland to the North and Churachanpur of Manipur to the South.The District had been known as Manipur West District before 1972. It is the farthest District from the state capital, Imphal and the District HQ. Tamenglong itself is also the farthest District HQ from Imphal being 147 Kms from the state Capital.
When India attained independence in 1947, Tamenglong District was not connected by motorable roads. The first motorable road constructed in Tamenglong District connected the capital of Manipur which was 75 miles long i.e. Imphal to Tamenglong road (I.T. Road), via Kangpokpi touching about 7 vallages of the District. The road was inuaugurated in 1957. Later on, when the NH-53 was constructed, the state constructed the road known as Khongsang-Tamenglong Road from Khongsang on NH-53 to Tamenglong with a length of 39.5 Kms- touching 6 villages of the District HQ from the state capital. Tousem-new Kaiphundai road was inuagurated in 1979. This road connected 8 Villages of Tousem Sub-Division. Light vehicle ply along this road. There is no bus service till now to Tousem. In fact 45.8% of the Villages of this district are not connected by all weather motorable Roads.
During British Regim the Old Cachar Road had connected Nungba-Sub-Divisional HQ, Tamenglong but now the road is deplorable.
The main rivers flowing in the District are Barak(Ahu), Irang, Makhru(Makhu), Iring, Ijei(Aga) and Apah rivers etc. Barak(Ahu) is the biggest river. Till now, the water of this river are not utilized for irragation or power production.
Some thick forest are found in this District. Kamningching forest in Nungba Sub-Division is a natural forest with fauna and flora of diverse species. Likewise, the interior villages like Lemta, Nallong, Kadi, Kuilong, Langpram, Taipram, Inem, Magulong, Phoklong, Zingning, Kakui and Thiulon have thick forests. In the forest different varieties of trees and animals are available.
Rare species like hornbill, hoolock gibbon, slow loris etc are found in the forest.Bamboo, cane etc grow abundantly in the forest. Medicinal herbs are also available in the forests. The region is known for its biodiversity.
Most of the land is hilly except a few pockets of flat lands such as Barak bank, Khoupum Valley and Kunphung. The flat land are barely 1000 hac. That is why wet paddy cultivation cannot be done in the large scale. Hence, the Jhum cultivation is the main method of cultivation. The paddy produced in the District cannot meet the demand of the population.