Swiftwater
1854
gouache
From the collection of National Gallery of Art
1854
gouache
From the collection of National Gallery of Art
This sketch shows a rushing river cutting through rocky cliffs. Trees cling to the steep sides, their branches tangled and bare. The water tumbles in frothy white waves, carving deep into the earth. The artist used light pencil strokes for the rocks and trees, then added flat washes of color to suggest water and shadows. It feels like a quick, on-the-spot drawing—almost like a sketchbook page. Next, check out the technique: gouache to see how artists use it for soft, layered colors.