Niandan Watercourse in Guinea From Wikipedia, the free encyclopedia The Niandan River is a tributary of the Niger River.[1] Niandan river near Kissidougou References [1]"Niandan river". mapcarta.com. Retrieved 2017-09-02. Africa portalGeography portal9°10′35″N 10°04′24″W This article related to a river in Guinea is a stub. You can help Wikipedia by adding missing information.vte Related Articles