Kogin Rima kogi ne a arewacin Najeriya . A gefen arewa yana haɗuwa da kogin Goulbi de Maradi . Ta bi kudu maso yamma ta haɗe da kogin Sokoto kusa da Sokoto sannan ta ci gaba da kudu zuwa kogin Neja . Rima na sama kogi ne na yanayi kuma yana gudana ne kawai a lokacin damina.[ana buƙatar hujja]An shirya Zauro, babban tsarin ban ruwa, shekaru da yawa. Za ta ba da ruwa 10,572 hectares (26,120 acres) na gonaki a yankin Rima da ke tsakanin Argungu da kuma Birnin Kebbi. Tosin Omoniyi (20 December 2009). "A Dam of Controversy". Newswatch.