The summit is marked by a pile of stones, and sits on the edge of steep north facing cliffs which provide one of the few habitats for Arctic–alpine plants this far south in the British Isles.

[1] The outstanding feature of the mountain is the L-shaped glacial cwm which faces to the northeast.

Its modern form is considered to be the result of a complex history of both glacial action and rock-slope failure, a portion of the west wall having collapsed after the main part of the last ice age.

[2] The rocks exposed in the main crag are Senni Beds of Devonian Old Red Sandstone, topped with Brownstones.

The ledges of the main crag to the south have been a favoured nesting site for peregrine falcons.