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An **anastomosing river system** is typically characterized by straight channels with low stream power and stable, non-eroding banks. This type of river formation results from avulsion, which can occur either through the creation of bypass channels or by splitting the main flow, resulting in the simultaneous existence of multiple connected channels. **Braided rivers** feature variable channels that separate and reconnect, often carrying coarse-grained sediment downstream. They are commonly found near mountainous regions, especially in areas with fluctuating water discharge or limited vegetation. **Meandering rivers** usually form in alluvial materials, which are reshaped as the river shifts and adjusts to the gradient. Uneven resistance to erosion leads to irregular meanders, sometimes creating goosenecks, which are sharply U-shaped bends. An **oxbow lake** can form when a gooseneck meander is cut off, isolating a former bend from the river's main flow.
