The fell is a domed plateau, three-quarters of a mile across, jutting out to the east of the Derwentwater-Thirlmere watershed, in the Borough of Allerdale.

Armboth Fell joins the main ridge via a shallow depression, a little to the south of High Tove, and due east of Middle Crag.

Fisher Gill takes the shorter course, flowing straight for the shore of the reservoir through a break in the conifers below Cockrigg Crag.

Prominent on the eastern flank of the fell is Fisher Crag (1,386 feet, 422 m), a striking rock face set all about by trees and midway between the two gills.

The only remaining structure is the summerhouse of Armboth Hall which lies amid the trees,[3] although a number of ruins, enclosures and tracks can still be found within the forest.

[1] There are views east to the Helvellyn range and westward over the main ridge to the higher fells where a great sweep from Grisedale Pike to Bowfell can be seen.

[1] To quote Wainwright "walkers of a contrary turn of mind will summarily reject the advice to leave Armboth Fell well alone, and may indeed be strengthened in their determination to climb it.