[4][5] It is in a horseshoe-shaped massif that includes the slightly higher peak of Mweelrea at 814 metres (2,671 ft), the highest mountain in the Irish province of Connacht.

[11][12] The peak of Ben Lugmore lies on the northern arm of the horseshoe that forms the massif of the Mweelrea Mountains, which is bounded by Killary Harbour, Ireland's deepest fjord, to the south, and Doo Lough to the north; Mweelrea, the provincial top for Connacht, lies near the apex of this horseshoe.

[5] From a distance, Ben Lugmore's profile is that of a long and high sharp ridge, along which its various summits (main and subsidiary) are dotted.

[4][5] The most direct route to the summit of Ben Lugmore is the 6 kilometres (3.7 mi) 3-hour round trip via the Lug More (or Irish: Coum Dubh) corrie and the valley of Glen Glencullin.

[8][7] Ben Lugmore's high northeastern cliffs that form the upper headwall of the Lug More (or Irish: Coum Dubh) corrie (situated above The Ramp), are a noted rock-climbing venue with multi-pitch mountain rock-climbs with grades varying from Diff (D) to Moderate Severe (MS), and length ranging from 35–70 metres (115–230 ft).

[16][17] The Lug More (or Irish: Coum Dubh) corrie also has a number of winter climbs, the most notable of which is Recession Gully (Grade II/III, 400 metres (1,300 ft)).