satellite, a broad ridge falling from the east of the summit cone. Middle Fell curves around to run parallel to Seatallan with the valley of Greendale Gill dividing the two. The stream begins at Greendale Tarn, nestled into the steep face of Middle Fell. The tarn, around 30 ft deep, sits in a long narrow bowl, looked down on by a collection of huge boulders. Seatallan's most prominent feature is Buckbarrow, the 400 ft rampart of crags on the southern edge overlooking lower Greendale and Wast Water. Buckbarrow is given a separate chapter in Alfred Wainwright's The Western Fells, and is thus classed as a Wainwright, despite having virtually no topographic prominence of its own. That convention is followed here. Above Buckbarrow are the minor tops of Glade How and Cat Bield, leading onto the great south west shoulder. Seatallan has other areas of much less impressive crag above the upper Bleng (Raven Crag) and Nether Beck (Winscale How). Geology Much of the fell is covered in deep drift deposits, but the underlying rock is generally the plagioclase-phyric dacite lava referred to as Seatallan Dacite. Above the Bleng are large areas of diorite, while around Buckbarrow there are outcrops of the andesite Birker Fell Formation. Minor intrusions of rhyolite and basalt have been located to the north. Summit A large tumulus marks the summit, alongside an Ordnance Survey triangulation column. The top is grassed and it is assumed that the tumulus was built from stones on the north slope. The view is heavily obstructed by the main range of the western fells, the highpoints being the Scafells and Coniston Fells. Wastwater can be brought into view by walking north east. Ascents Indirect ascents via Buckbarrow begin from Harrow Head. An alternative bypasses the subsidiary summit to gain Cat Bields from the south west. From Greendale the gill can be followed almost to the tarn, before branching off up the grassy slopes of Seatallan. If preferred Middle Fell can be used as a stepping stone onto Seatallan from the same point. Finally from Nether Beck Bridge the route to Haycock can be used, turning west via Lad Crag Beck to the summit. References Marilyns of England Hewitts of England Fells of the Lake District Nuttalls Borough of Copeland