Gerukamukh, located at a distance of around 45 Kms from Dhemaji, is one of the most beautiful natural spots in the state of Assam. Here, the river Subansiri, the largest tributary of the Brahmaputra, meets it. This region surrounded by rolling hills and dense evergreen forests is a popular picnic spot for locals during the winter months. Another favourite activity here is angling, which is done by both tourists and locals alike.
Gerukamukh is also important due to it being the location for the under-construction Subansiri Dam, known officially as the Subansiri Lower Hydroelectric Power Project. This, when completed, will be the largest hydroelectric power project in India and be able to generate large amounts of hydroelectric power for Assam and other states as needed.