Kogin Ofin hanya ce da ke kwarara ruwa a kasar Ghana. Yana kwarara ne ta Tano Ofin Reserve da ke Gundumar Atwima Mponua ta Ghana. Kogin Ofin yana da mita 90 a saman matakin teku. Ofin ya yanke hanyoyin da suke hawa, matsakaita zurfin mita 12-15, zuwa cikin birgima da ke gudana a kansa. Kogin Ofin da Pra sun yi iyaka tsakanin yankin Ashanti na Ghana da yankin Tsakiya. Dunkwa-on-Offin babban birni ne a kan kogi. Zinare ake haƙa daga layin kogin. Jinsunan ƙasar sun haɗa da Clarias agboyiensis, wani nau'in kirki na kifin mai dauke iska. Dam din Barekese yana kan hanyarsa. Kogin Gyimi Ilimin kasa na Ghana From spectators to managers of tropical forests, Ghana. Retrieved May 22, 2006. Wright, J.B.; Hastings, D.A.; Jones, W.B.; Williams, H.R. (1985). Wright, J.B. (ed.). Geology and Mineral Resources of West Africa. London: George Allen & UNWIN. pp. 45–47. ISBN 9780045560011. Taylor, Ryan; Anderson, Eric (2018). Quartz-Pebble-Conglomerate Gold Deposits, Chapter P of Mineral Deposit Models for Resource Assessment, USGS Scientific Investigations Report 2010-5070-P (PDF).