In fluvial geomorphology, the primary agent of erosion is water, specifically the flowing water of rivers and streams.

Canyons are deep, narrow valleys with steep sides, often formed by the erosive action of rivers over long periods of time.

Deposition is the process by which sediment carried by a river is deposited in a new location, typically when the river's velocity decreases.

Floodplains, deltas, and sandbars are all landforms that are formed by the deposition of sediment in a river system.

Meandering is the process by which a river's course changes over time, creating a sinuous pattern of bends and curves.

Braiding is a type of river channel pattern characterized by multiple, interconnected channels that form a network-like pattern.

A delta is the sediment deposited at the mouth of a river, where it meets a larger body of water, such as an ocean or lake.

Sand, gravel, and clay are all common types of sediment found in river systems, depending on the erosional and depositional processes at work.

Transportation is the process by which sediment is carried by a river, typically through the action of flowing water.

Floodplains, deltas, and sandbars are all common types of riverine landforms created by the deposition of sediment.

Incision is the process by which a river's channel widens and deepens over time, typically due to the erosive action of flowing water.

Canyons, gorges, and valleys are all common types of riverine landforms created by erosion.

A cutoff is the process by which a river's course is straightened or shortened, typically due to the formation of a new channel that bypasses a bend or meander.

Canyons, gorges, and valleys are all common types of riverine landforms created by the erosion of bedrock.

Transportation is the process by which a river's sediment load is transported downstream, typically through the action of flowing water.