Mossendjo is a town in the Niari Valley It lies within the Chaillu Massif. It's principle activities are hunting and agriculture. The main products cultivated are manioc, coffee, cocoa, peanuts, banana, tobacco and rice. The Congo-Ocean Railway COR; French: Chemin de fer Congo-Océan, CFCO, built in the 1920's, passes through Mossendjo.