Turner’s ground-breaking use of watercolour culminated in the 1840s in a series of transcendent views of Swiss lakes and mountains. Among the most famous of these are three views of Mt Rigi, seen from Lake Lucerne, that show the mountain at different times of day. Here Turner captured fleeting colour changes on Mt Rigi’s slopes, recording the altering moods of the scene under different lighting conditions – in The Red Rigi the mountain is illuminated by the warm glow of the setting sun. These works unite the artist’s close observation of nature with his elaborate technique to evoke an atmosphere of utter tranquillity and contemplative calm.