Krimmler Waterfall, waterfall on the Krimmler River, a tributary of the upper Salzach, in Bundesland (federal state) Salzburg, west-central Austria. The highest cataract in the Austrian Alps, with a fall of 1,247 feet (380 m), it drops in three stages—upper, middle, and lower. Its upper fall is the most impressive, with a 460-foot (140-metre) drop. The falls can be reached by foot trail or bridle path from the nearby village of Krimml.