 The Wythburn valley (and its bogs) can be followed to reach the ridge at Greenup edge, or more direct climbs can be made via Harrop Tarn.From here either the line of tops above Nab Crags or Standing Crag will be the intermediate objective.Ullscarf can be climbed from Watendlath, gaining the north-north-east ridge above Blea Tarn, and then ascending over the tops of Coldbarrow Fell.