Niandan From Wikipedia, the free encyclopedia Watercourse in Guinea The Niandan River is a tributary of the Niger River.[1] Niandan river near Kissidougou ↑ "Niandan river". mapcarta.com. Retrieved 2017-09-02. Africa portalGeography portal 9°10′35″N 10°04′24″W / 9.176302°N 10.073358°W / 9.176302; -10.073358 This article related to a river in Guinea is a stub. You can help Wikipedia by adding missing information.vte Related Articles