Mountainous Landscape with Waterfall

Now in the Rijksmuseum, Pynacker's 1667 'Mountainous Landscape with Waterfall' is among his most developed mature compositions, showing the dramatic rocky terrain and cascading water that distinguished his vision of the Italian landscape from the flat Dutch countryside of his origin. The waterfall was a particularly challenging subject for Dutch painters because it required depicting water in motion — a constant process frozen into a single painted instant — and because Dutch topography offered no waterfalls for study. Pynacker would have seen waterfalls during his Italian period, perhaps in the Apennines, the Tirol, or at Tivoli, and those memories informed his painted waterfalls for decades afterward. The Rijksmuseum's holding of this 1667 canvas confirms its status as a masterwork of the Dutch Italianate tradition: the museum's Dutch Golden Age collection prioritised works of exceptional quality and historical significance, and Pynacker's landscapes were valued by nineteenth-century Dutch national collectors as evidence of the breadth and ambition of seventeenth-century Dutch painting.

Oil on canvas, the waterfall is rendered using thin, vertically dragged paint strokes over a pale ground, creating a translucent curtain effect. Rocky formations alongside are built up with heavier, directional impasto that contrasts with the waterfall's thin, fluid treatment. The mist at the waterfall's base is suggested with pale grey horizontal strokes.