There are at least 2 major rivers here and possibly some smaller ones. That area is pretty flat so there isn't much slope. These rivers are much shorter. But they're important to this area. On either side are fields.
Rivers come from somewhere.
We can see that they're coming out of the mountains to the south. In this area, we have the Clark Range in the Southeast and the Connors Range. Those rivers are full of sediment, material eroded from mountains and washed downstream. Likely to flood during heavy rain season. Likely to find levees and bayous in such areas.