This line of high ground continues over many twists and turns for 15 miles, finally meeting the sea on the slopes of Black Combe.

Alfred Wainwright considered the latter hills unworthy of inclusion in his influential Pictorial Guide to the Lakeland Fells, stating that "south and west from Green Crag the scenery quickly deteriorates.

To the southwest is a broad and marshy saddle leading onto Green Crag and the moorlands of Birker Fell, the ongoing watershed.

The southern and eastern flanks are heavily forested with conifers, legions of Forestry Commission trees sweeping down into the Duddon valley.

The fell is dominantly composed of composite andesite lava flows, with autobrecciated upper surfaces developed in some locations.

Also on the northern slopes of the fell, and lower still at between 450 – 500 m, the lava flows switch to dacitic composition, with distinctive euhedral plagioclase feldspar phenocrysts (1 – 4 mm).

In the north-western corner, near the Spothow Gill, a small vein of copper mineralisation has been worked out, and some of the evidence of this Victorian-era mining activity can still be seen.