A' Ghlas-bheinn is classed as a Munro, although at a height of 918 m (3,011 feet), it is one of the smallest. This rough and rocky mountain is situated near to Morvich and its peak stands at the trisection of 3 ridges: the southern one leads to Beinn Fhada, the northern leads to its auxiliary ridges Creag na Saobhie and Meall Dubh and the western continues down to Dorusduam and the A87 road.
The upper slopes are craggy, but not too difficult for walkers to ascend. Climbing A' Ghlas-bheinn is often combined with an ascent of nearby Beinn Fhada, and both offer excellent views from their summits. The usual starting point for the climb is via the south eastern ridge from Bealach an Sgairne to the east of Loch a’Chleirich.