Wɔatwerɛ nsɛm wei ɛwɔ Asante kasa mu Asuo Ayensu yɛ nsuo a ɛwɔ Ghana. Ɛtene kɔgu Ouiba Lagoon mu ɛna "Winneba Wetlands" atwa ne ho ahyia. Wɔ afe apem ahankron ne aduasa nkron mu ntɛm paa ara no wɔyɛɛ nhyehyɛeɛ sɛ wɔbɛsi nsutware wɔ nsuo a ɛbɛn Asuo Jahadzi. Wɔ nsaase nhwehwɛmu no, Ahensuadzi-Brusheng Quartz Schists wɔ nsubeaɛ. "DCE launches River Basin Afforestation to sustain water". www.ghanaweb.com. Retrieved 2015-05-28. Hughes, R. H.; Hughes, J. S.; Bernacsek, G. M. (1992). A Directory of African Wetlands. IUCN. p. 365. ISBN 978-2-88032-949-5. Ghana Geological Survey (1939). Report of the Director. p. 41 Ghana Geological Survey (1958). Bulletin.