Rocks in the Verzasca River near the hamlet of Lavertezzo in the Valle Verzasca of Switzerland

water water resources mountain natural landscape bedrock sky watercourse fluvial landforms of streams terrain landscape wood formation outcrop geological phenomenon reflection valley tree mountain river mountain range stream geology riparian zone fault rock coast lake water feature nature reserve badlands erosion batholith recreation grass klippe wadi arroyo rapid hill boulder ocean cliff wave escarpment narrows creek cove adventure ravine inlet road