This image was begun with a faint graphite pencil underdrawing, and overlaid with tones of grey wash made from different dilutions of the same black ink or watercolour. Barnard then filled in and defined the sketch with scattery pen and ink lines and some brush line-work. This technique is visible in the foreground rocks. The dark area in the lower left corner consists of layers of wash, built up by applying wet washes over dry ones. The principal peaks have been numbered from 1 to 10 in graphite pencil.