What prevents the meanders found in canyons form cutting off so easily?

The meanders in canyons are prevented from cutting off easily due to the stability provided by the surrounding geology, including resistant rock formations that limit erosion. Additionally, the flow of water within the river can be influenced by factors such as sediment deposition and vegetation, which anchor the banks and create friction that slows down the erosive processes. Furthermore, the energy of the river is distributed, which helps maintain the existing meander patterns rather than promoting rapid changes.