Delo River, fondly known to those familiar with the area as 'The Big D', is a wide, slow moving river which provides both ease of transport as well as an efficient water supply to the South Plains in Eastern Aison. The Delo flows from the Roost and is teeming with life. Crop fields are the only sight a traveller sees on the lands along the riverbanks between Reno and Hucaluk Harbour.