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 remainder of the range unworthy of inclusion in his influential Pictorial Guide to the Lakeland Fells, stating that "south and west from Green Crag the scenery quickly deteriorates.

[4] The Duddon flanks have shallower gradients, divided by dry stone walls into long strips of pasture land.

The western boundary is formed by the Birker Fell Road, an unenclosed route from Ulpha to Eskdale Green with fine views of the Scafells.

[5] The summit knoll is formed by plagioclase-phyric andesite lavas of the Birker Fell Formation of the Borrowdale Volcanic Group.

[6] The summit of Green Crag is composed of naked rock and the ordinary walker will only find access from the north or west, mild scrambling being required.

[7] The view from the small cairn on the summit gives a fine prospect of the southern fells, together with a sight of the sea due south.