 So as the meandering channel continues to build up bigger and bigger meanders, eventually they run into each other. So if we take this diagram I've been using here, and you have erosion on the outside of the bend, both of these bends, you can lose the entire bank between these two corners and develop a new river channel that cuts off this particular meander. That can happen just with the migration of the meanders, but it's more likely to happen during a flood when you have lots of extra erosion and more momentum in the water. But what happens is once the main flow develops over here, the geometry of the river changes. I'm going to sit down and be down over this way, and you end up cutting off this part of the channel. And so a lot of times you end up with sediment deposited in here from sort of a back-eddy of the river flow, and this abandoned meander channel is still deeper and at a lower elevation than the flood plain. And so it often accumulates water and becomes a lake. And so then you go from a river channel faces into deposition in a lake, which is typically very fine-grained sediment. And a lot of meandering river channels, there's lots of water, there's lots of nutrients from the sediment that's being brought in, and so there's usually lots of organic matter. So these are usually organic-rich and mostly have mud-sized grains accumulating in them. So these lakes are called oxbow lakes, and that's connected to the agricultural use of flood plains before they were mechanized tractors. So oxen were hitched to plows with a piece of wood that had holes in it, and then sort of a thick beam, and then there would be sort of softer saplings that could be bent that were put in through these beams under the oxen's neck. And so the similarity of the shape of these bows that were used to hitch the oxen to the plows and the bends in the river led to this name, oxbow lake. Thanks for watching.