28 C O N T E X T 1 5 5 : J U L Y 2 0 1 8 SIÂN JONES, ALEX HALE, STUART JEFFREY, JOHN HUTCHINSON, MHAIRI MAXWELL and JOHN STUART WATSON Conservation, climbing and graffiti Participatory methodologies, like those used in dealing with the marginalised heritage at Dumbarton Rock, can provide the basis for sensitive management and conservation planning. ‘I’ve been going on for years about Dumbarton Rock being one of our finest examples of modern sporting heritage, a kind of living history and an example of community ownership.’ Climber at Dumbarton Rock Dumbarton Castle is a nationally significant heritage site in the care of Historic Environment Scotland, the non-departmental public body responsible for the care and promotion of Scotland’s historic environment. It is a locale laden with other heritage values, in particular those expressed in the opening quote from one of the climbers associated with Dumbarton Rock, the volcanic plug on which the castle is located. In this article we discuss how diverse heritage values can be identified and accommodated within heritage management and conservation planning. In particular, we focus on the com- munity participatory methodologies developed by the ACCORD project, 1 and show how these can shed light on hidden or marginalised forms of value. Once the capital of the early medieval Kingdom of Strathclyde, Dumbarton Rock remained a politically and tactically important place until the 19th century. In terms of extant structures, the castle is made up of military buildings and fortifications dating mainly to the 17th and 18th centuries (Canmore ID 43376). Many of the buildings are listed and the entire rock is a scheduled monument. In addition to protection and conservation, the castle is open to the public. Visitors approach from the eastern side of the rock surrounded by mown grass and picnic benches. In contrast, the northern and western faces of the rock are approached along an overgrown, unsignposted path. This leads to a dramatic landscape of cliffs and boulders looking out on post-industrial landscapes on the confluence of the Clyde and Leven Rivers. As already noted, this side of the rock is an important climbing and bouldering site (see www.dumby. info). It has been subject to extensive graffiti, ranging from inscribed names and dates, and Aerial view of Dumbarton Rock and Castle (Crown Copyright: Historic Environment Scotland) 1 The ACCORD project (Archaeology Community Coproduction of Research Data, 2014-16) was led by Glasgow School of Art in association with University of Manchester, the Royal Commission on the Ancient and Historical Monuments of Scotland and Archaeology Scotland. It was funded by the Arts and Humanities Research Council under Grant AH/ L007533/1. 2 Historic Scotland and the Royal Commission on the Ancient and Historical Monuments of Scotland merged in 2015 to create Historic Environment Scotland.