alapattanam River is the largest river in the Kannur district, located in the South Indian state of Kerala. Valapattam town is located on its bank. The famous Muthappan temple is also on the bank of the river. Kannur District Tourism Council has launched a `Nadi Darshan' (river viewing) programme in association with a private resort at Kattampalli as much as an initiative to popularise the kettuvallam for tourism promotion as also an effort to make people know more about Valapattanam River.[1] Valapattanam River originates from the Brahmagiri Reserve Forest in Karnataka at an altitude of 900-1350m above mean sea level and drains into Kannur district. Major tributaries of this river are the Sreekantapuram River, Bavali River, Veni River, and the Aralam River. Text matter from--- http://en.wikipedia.org