and lapilli-tuff of the Deepdale Formation overlie the dacitic lapilli-tuff of the Helvellyn Formation. Summit The summit is a rough stony plateau with the high point at the western end above the brink of Cawk Cove. The top is very flat and there are many cairns, including a pair of large windbreaks near the high point. Guidebook writers warn that it is easy to get lost in mist and that the cautious walker should beware of the presence of precipices to the north and west. The vista is fine, with all of the major fell groups well seen and views down into the abyss of Deepdale only yards away. Other fells visible at close hand include Helvellyn (with its spectacular arête Striding Edge), Nethermost Pike, Saint Sunday Crag and Cofa Pike (a subsidiary summit of Fairfield). The view south towards Ambleside and Rydal over Rydal Head is also extensive, with Windermere and Coniston Water in view. Ascents Fairfield is most commonly climbed as the high point of the Fairfield horseshoe, a walk which has no agreed direction of travel. Coming from Great Rigg, the long grassy ridge heads directly for the summit, whilst the walker arriving from Hart Crag climbs up from Link Hause with a fine view of Scrubby Crag to the right, before the stony traverse of Fairfield summit. Perhaps the finest indirect ascent is from Patterdale via Birks and St Sunday Crag, following the fine narrow ridge down to Deepdale Hause before ascending rough ground to Cofa Pike. This subsidiary top of Fairfield has a fine peaked profile, quite outdoing its parent until the wide tabletop comes into view behind. A further rock tor is surmounted before the summit windbreaks are reached. From St Sunday Crag onwards the northern crags of Fairfield are seen in their full and wild glory. Fairfield can be climbed via Grisedale Hause, either up Tongue Gill from Grasmere, from Dunmail Raise or from Patterdale. The path up from the Hause is a rough zigzag up worsening scree. Grisedale Hause can also be reached as a ridge walk from Seat Sandal, or by cutting across the outlet of Grisedale Tarn from Dollywaggon Pike and the Helvellyns. In this way Fairfield forms part of the Threlkeld–Kirkstone Walk, which continues over Fairfield summit to Dove Crag and Red Screes. A more challenging route climbs out of Deepdale, veering into the lower part of Link Cove