Assam - Ministry of Environment and Forests

7.1.12 LakhimpurThe district is situated in the north eastern part of Assam between 26o 45'N and 27 o 35'N latitudes and 93 o 40'Eand 94 o 53'E longitudes. It occupies 3, 00,800 hectares of area. It is bounded on the east by Dhemaji andDibrugarh districts, on the west by Sonitpur district and part of Arunachal Pradesh, on the north by ArunachalPradesh and Dhemaji district. The topography of the district varies from undulating uplands on the northernfoothill belt to low lying plains on the south with elevation range of 35 metres (areas in riverine belt) to 140metres (areas in the foothill belt) above the m. s.l. The mean altitude of the district is 102 metres above m.s.l. Allthe rivers in the district are perennial in nature. The river Brahmaputra flows on the southern side of the district.The other major rivers are Subansiri, Simen and Dikrai. The soils of the district are broadly fall into three majorgroups i.e. Older Alluvium along the foothill Older Alluvium on the flood plains and Newer Alluvium on the recentflood plains. The annual mean rainfall in the district is 300 cm. The maximum and minimum temperatures are31 o C and 7 o C respectively, while the mean temperature is 19 o C. As per Census Report, 2001, the district has atotal population of 8, 89,010.Total wetland area in the district is 27307 ha that includes 458 small wetlands (