Alwero River is a river in Abobo woreda of Gambela Region, Ethiopia. It flows through the Gambela National Park and through wetlands into the Openo/Baro River. The potential land for irrigation development in the Gambella region, where the present study was conducted, is estimated to be 500,000 ha [10]. The region has a number of perennial rivers including, Baro, Alwero, Gille, and Akoba, which can be used as potential sources of irrigation water. In fact, this study was initiated to assess the physical land suitability for irrigation in the lower Alwero river area of Abobo, Anywaa Zone of Gambella Region.