What are the dangers of building dams in mountainous areas?

Building dams in mountainous areas poses several dangers, including increased risk of landslides and rockfalls due to altered landscapes and destabilized slopes. The creation of reservoirs can lead to significant ecological disruption, impacting local flora and fauna. Additionally, in the event of dam failure, the potential for catastrophic flooding downstream is heightened, threatening communities and infrastructure. Lastly, the seismic activity common in mountainous regions may further increase the risks associated with dam stability.