'I like the idea of using the land without possessing it'. Richard Long's treatment of the landscape is a rejection of the idea of the permanent monument. While a student at West of England College he formulated a non-interventional, ephemeral way of working with the land that could take the form of gathered snow or a walk or an arrangement of stones on a path. Bringing the land back into the gallery space is another approach and his drawings with mud reveal an affinity with ritual and an interest in the earliest forms of making marks. He has worked with mud from the Avon since 1979 but this drawing was made on a residency in San Francisco, and uses mud from the Mississippi.